Large chamfer bolt cold heading forming tool

Abstract

The utility model relates to the technical field of cold heading dies, in particular to a large chamfer bolt cold heading forming tool which comprises a lower die, a protruding seat, an electric telescopic rod, an upper die and a cooling device, the cooling device comprises a cooling panel, a protection panel, an installation assembly, an adding assembly and an auxiliary assembly, and the cooling panel is detachably connected with the lower die. The protection panel is detachably connected with the lower die, the installation assembly is arranged on the lower die and the cooling panels, the adding assembly is arranged on the cooling panels, the auxiliary assembly is arranged on the protection panel, the cooling panels are installed on the front side and the rear side of the lower die, and the cooling panels are located in a closed space in the lower die through the protection panel; according to the cold heading and chamfering device for the bolt, after cold heading and chamfering are completed on the bolt, cooling liquid in the cooling panel can absorb heat generated in the lower die in an evaporation mode, so that the bolt is cooled, the situation that an operator is scalded when the bolt is taken down is avoided, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cold heading dies, in particular to a cold heading forming tooling for large chamfer bolts. Background Art

[0002] At present, when using the cold heading process to produce bolts, raw materials are often added into the die to close the forming cavity of the die, so as to cold head the bolts. However, when the die closes the forming cavity, the outside air often enters the forming cavity due to poor sealing effect, thus affecting the cold heading process and resulting in low precision of the cold-headed bolts.

[0003] The prior art CN219004440U discloses a die for cold heading forming of bolts, including a lower die and an upper die. A forming seat is embedded and installed on the top wall of the lower die, and convex seats are symmetrically welded on both sides of the outer wall of the lower die. Installation grooves are formed inside the top walls of the two convex seats, and electric telescopic rods are fixedly welded to the bottom walls of the two installation grooves. The top ends of the two electric telescopic rods are fixedly welded with ear seats, and the two ear seats are respectively welded to the opposite side walls of the upper die. An outer circle of the top wall of the lower die is provided with a seal groove in a square shape, and a convex strip is fixedly welded to the bottom wall of the upper die. A sealing strip is fixedly adhered to the inner wall of the convex strip. The whole formed by the convex strip and the sealing strip can be inserted into the seal groove in a fitting manner. When in use, the two electric telescopic rods are driven to contract simultaneously to drive the upper die to sink, so that the convex strip and the sealing strip on the bottom wall of the upper die are inserted into the seal groove in a fitting manner, making the lower die and the upper die fit tightly, so that the cold heading in the forming cavity can be carried out smoothly, and the outside air can hardly affect the cold heading through the gap between the upper die and the lower die, thereby improving the precision of the bolts formed after cold heading.

[0004] However, adopting the above method, during the process of cold heading and chamfering the bolts, after the processing is completed, it is not convenient to cool down the bolts, resulting in easy scalding of the operators when removing the bolts, causing potential safety hazards. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a cold heading forming tooling for large chamfer bolts, which can facilitate the cooling treatment of the bolts after cold heading and chamfering, avoid scalding the operators when removing them, and reduce potential safety hazards.

[0006] To achieve the above purpose, the utility model provides a cold heading forming tooling for large chamfer bolts, including a lower die, convex seats, electric telescopic rods and an upper die. The convex seats are fixedly connected with the lower die and are located on one side of the lower die. The electric telescopic rods are fixedly connected with the convex seats and are located on one side of the convex seats. The upper die is arranged on the electric telescopic rods, and a cooling device is further included;

[0007] The cooling device includes a cooling panel, a protective panel, a mounting component, an adding component, and an auxiliary component. The cooling panel is detachably connected to the lower die and is located on one side of the lower die. The protective panel is detachably connected to the lower die and is located on one side of the lower die. The mounting component is respectively arranged on the lower die and the cooling panel. The adding component is arranged on the cooling panel. The auxiliary component is arranged on the protective panel.

[0008] Among them, the mounting component includes a placement frame and a force-applying block. The placement frame is fixedly connected to the lower die and is detachably connected to the cooling panel. The force-applying block is fixedly connected to the cooling panel and is located on one side of the cooling panel.

[0009] Among them, the adding component includes an injection pipe and a nut. The injection pipe is fixedly connected to the cooling panel and is located on one side of the cooling panel. The nut is threadedly connected to the injection pipe and is located on one side of the injection pipe.

[0010] Among them, the auxiliary component includes a handle and a stabilizing member. The handle is fixedly connected to the protective panel and is located on one side of the protective panel. The protective panel is connected to the lower die through the stabilizing member.

[0011] Among them, the stabilizing member includes a threaded track and a locking bolt. The threaded track is fixedly connected to the lower die and is located on one side of the lower die. The locking bolt is detachably connected to the protective panel and is threadedly connected to the threaded track.

[0012] A cold heading and chamfering tool for large chamfer bolts of the present utility model includes a lower die, a protruding seat, an electric telescopic rod, an upper die, and a cooling device. The cooling device includes a cooling panel, a protective panel, a mounting component, an adding component, and an auxiliary component. By installing the cooling panel on the front and rear sides of the lower die and making the cooling panel in a closed space inside the lower die through the protective panel, after the cold heading and chamfering of the bolt are completed, the coolant inside the cooling panel can absorb the heat generated inside the lower die by evaporation, thereby cooling the bolt and avoiding scalding the operators when removing it, reducing potential safety hazards. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art.

[0014] Figure 1 It is a schematic diagram of the overall structure of the cold heading and chamfering tool for large chamfer bolts according to the first embodiment of the present utility model.

[0015] Figure 2It is a schematic structural diagram of the cooling device according to the first embodiment of the present utility model.

[0016] Figure 3 It is an installation schematic diagram of the cooling panel according to the first embodiment of the present utility model.

[0017] Figure 4 It is an installation schematic diagram of the protection panel according to the second embodiment of the present utility model.

[0018] In the figure: 101 - lower die, 102 - protruding seat, 103 - electric telescopic rod, 104 - upper die, 105 - cooling panel, 106 - protection panel, 107 - placement frame, 108 - force - applying block, 109 - injection pipe, 110 - nut, 111 - handle, 201 - threaded track, 202 - locking bolt. Detailed implementation manners

[0019] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, but should not be construed as limiting the present utility model.

[0020] The first embodiment of the present application is as follows:

[0021] Please refer to Figures 1 to 3 , in which Figure 1 is the overall structural schematic diagram of the cold - heading and chamfering tool for large - chamfer bolts, Figure 2 is the structural schematic diagram of the cooling device, Figure 3 is the installation schematic diagram of the cooling panel. The present utility model provides a cold - heading and chamfering tool for large - chamfer bolts, which includes a lower die 101, a protruding seat 102, an electric telescopic rod 103, an upper die 104, and a cooling device. The cooling device includes a cooling panel 105, a protection panel 106, an installation component, an adding component, and an auxiliary component. The installation component includes a placement frame 107 and a force - applying block 108. The adding component includes an injection pipe 109 and a nut 110. The auxiliary component includes a handle 111 and a stabilizing member. Through the foregoing solution, in the process of cold - heading and chamfering bolts, after processing, it is not convenient to cool the bolts, resulting in easy scalding of operators when removing the bolts, causing potential safety hazards. It can be understood that the foregoing solution can be used to facilitate the cooling of bolts after cold - heading and chamfering, avoid scalding operators when removing them, reduce potential safety hazards, and can also be used to place the cooling panel 105 in a closed space to prevent external dust from entering and improve the heat absorption effect of the cooling panel 105.

[0022] For this specific embodiment, the protruding seat 102 is fixedly connected to the lower die 101 and is located on one side of the lower die 101. The electric telescopic rod 103 is fixedly connected to the protruding seat 102 and is located on one side of the protruding seat 102. The upper die 104 is arranged on the electric telescopic rod 103. A forming seat is embedded and installed on the top wall of the lower die 101. The protruding seats 102 are symmetrically welded on both sides of the outer wall of the lower die 101. Installation grooves are formed inwards on the top walls of the two protruding seats 102. The electric telescopic rods 103 are fixedly welded to the bottom walls of the two installation grooves. The tops of the two electric telescopic rods 103 are fixedly welded with ear seats, and the two ear seats are respectively welded to the opposite side walls of the upper die 104. An outer circular mouth-shaped sealing groove is formed on the top wall of the lower die 101. A protruding strip is fixedly welded to the bottom wall of the upper die 104. A sealing strip is fixedly adhered to the inner wall of the protruding strip. The whole formed by the protruding strip and the sealing strip can be inserted into the sealing groove in a fitting manner. During use, the two electric telescopic rods 103 are driven to contract simultaneously to drive the upper die 104 to sink, so that the protruding strip and the sealing strip on the bottom wall of the upper die 104 are inserted into the sealing groove in a fitting manner, so that the lower die 101 and the upper die 104 are closely attached to each other, so that cold heading in the forming cavity can be carried out smoothly. It is almost impossible for the outside air to affect cold heading through the gap between the upper die 104 and the lower die 101, thereby improving the precision of the bolt formed after cold heading. The above are all prior arts.

[0023] Among them, the cooling panel 105 is detachably connected to the lower die 101 and is located on one side of the lower die 101. The protective panel 106 is detachably connected to the lower die 101 and is located on one side of the lower die 101. The mounting components are respectively arranged on the lower die 101 and the cooling panel 105. The adding component is arranged on the cooling panel 105. The auxiliary component is arranged on the protective panel 106. Placing grooves are formed on both the front and rear sides of the lower die 101. The number of the cooling panels 105 is two, and the two cooling panels 105 are respectively arranged in the two placing grooves. The cooling panel 105 is in close contact with the lower die 101. The cooling panel 105 contains coolant inside, so that the coolant can absorb the heat transferred inside the lower die 101 by evaporation, thereby cooling the processed bolts. The operation is simple. The number of the protective panels 106 corresponds to the number of the cooling panels 105. The cross-sectional dimension of the protective panel 106 is larger than that of the placing groove, so that the two protective panels 106 can respectively cover the placing grooves on both sides of the lower die 101, and the cooling panel 105 is located in a closed space, thereby preventing external air from entering the placing groove and affecting the use of the cooling panel 105. The cooling panel 105 is placed in the placing groove of the lower die 101 through the mounting component, so that the cooling panel 105 can maintain a relatively stable state. The adding component is arranged on the cooling panel 105, which facilitates adding coolant into the cooling panel 105. The auxiliary component is arranged on the front side of the protective panel 106, and the auxiliary component facilitates the installation and disassembly of the protective panel 106. By installing the cooling panel 105 on both the front and rear sides of the lower die 101 and making the cooling panel 105 in a closed space inside the lower die 101 through the protective panel 106, after the cold heading and chamfering of the bolts are completed, the coolant inside the cooling panel 105 can absorb the heat generated inside the lower die 101 by evaporation, thereby cooling the bolts and preventing scalding of the operators when the bolts are taken off, reducing potential safety hazards.

[0024] Secondly, the placement frame 107 is fixedly connected to the lower die 101 and detachably connected to the cooling panel 105; the force application block 108 is fixedly connected to the cooling panel 105 and is located on one side of the cooling panel 105. The placement frame 107 is welded in the placement groove of the lower die 101. The placement frame 107 is of a frame structure, and the internal cross-sectional dimension of the placement frame 107 is adapted to the cross-sectional dimension of the cooling panel 105, so that the cooling panel 105 can be placed in the placement frame 107, thereby increasing the resistance received by the cooling panel 105 and enabling the cooling panel 105 to maintain a relatively stable state. At both ends of the side of the cooling panel 105 away from the lower die 101, the force application blocks 108 are provided. The force application blocks 108 provide a force application point for the operator, facilitating the operator to install and remove the cooling panel 105 in the placement frame 107 through the force application blocks 108.

[0025] Meanwhile, the injection pipe 109 is fixedly connected to the cooling panel 105 and is located on one side of the cooling panel 105; the nut 110 is threadedly connected to the injection pipe 109 and is located on one side of the injection pipe 109. The injection pipe 109 is arranged at the upper right corner of the cooling panel 105. The injection pipe 109 is of a tubular structure and is internally connected to the cooling panel 105, enabling coolant to be added to the cooling panel 105 through the injection pipe 109. The nut 110 is threadedly connected to the injection pipe 109, preventing the coolant from volatilizing from the injection pipe 109 after the coolant is injected and improving the utilization rate of the coolant.

[0026] In addition, the handle 111 is fixedly connected to the protection panel 106 and is located on one side of the protection panel 106; the protection panel 106 is connected to the lower die 101 through the stabilizing member. The handle 111 is fixed to the front side of the protection panel 106. The handle 111 provides a force application point for the operator, facilitating the operator to install and remove the protection panel 106 through the handle 111. The stabilizing members are respectively arranged on the lower die 101 and the protection panel 106, enabling the protection panel 106 to maintain a stable state on the lower die 101 after the protection panel 106 is installed.

[0027] When using a cold heading and chamfering tool for large chamfer bolts according to this embodiment, by installing the cooling panels 105 on the front and rear sides of the lower die 101, and making the cooling panels 105 in a closed space within the lower die 101 through the protective panel 106, after the cold heading and chamfering of the bolts are completed, the coolant inside the cooling panels 105 can absorb the heat generated inside the lower die 101 by evaporation, thereby cooling the bolts, avoiding scalding the operators when removing them, and reducing potential safety hazards.

[0028] The second embodiment of this application is as follows:

[0029] Based on the first embodiment, please refer to Figure 4 , Figure 4 which is a schematic installation diagram of the protective panel in the second embodiment. The stabilizing members in this embodiment include a threaded track 201 and a locking bolt 202.

[0030] For this specific embodiment, the threaded track 201 is fixedly connected to the lower die 101 and is located on one side of the lower die 101; the locking bolt 202 is detachably connected to the protective panel 106 and is threadedly connected to the threaded track 201. Four threaded tracks 201 are arranged in a rectangle at the four corners of the front side of the lower die 101. The positions of the threaded tracks 201 correspond to the four corner positions of the protective panel 106, and through slots are formed at the four corner positions of the protective panel 106. The cross-sectional dimensions of the through slots are adapted to the cross-sectional dimensions of the threaded tracks 201. The locking bolt 202 can be inserted into the through slots and then threadedly screwed into the threaded tracks 201, so as to fix the protective panel 106 on the lower die 101, making the cooling panel 105 in a closed space and preventing external dust from entering.

[0031] When using a cold heading and chamfering tool for large chamfer bolts according to this embodiment, place the two protective panels 106 on the front and rear sides of the lower die 101 respectively, so that the positions of the through slots of the protective panel 106 correspond to the positions of the threaded tracks 201. Insert the locking bolt 202 into the through slots and then threadedly screw it into the threaded tracks 201, so as to fix the protective panel 106 on the lower die 101, making the cooling panel 105 in a closed space, preventing external dust from entering, and improving the heat absorption effect of the cooling panel 105.

[0032] The above-disclosed are only one or more preferred embodiments of this application, and the scope of rights of this application cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of this application still fall within the scope covered by this application.

Claims

1. A cold heading forming tool for large chamfer bolts, comprising a lower die, a protruding seat, an electric telescopic rod and an upper die. The protruding seat is fixedly connected to the lower die and is located on one side of the lower die. The electric telescopic rod is fixedly connected to the protruding seat and is located on one side of the protruding seat. The upper die is arranged on the electric telescopic rod, and is characterized in that, it further comprises a cooling device; The cooling device includes a cooling panel, a protective panel, a mounting component, an adding component and an auxiliary component. The cooling panel is detachably connected to the lower die and is located on one side of the lower die. The protective panel is detachably connected to the lower die and is located on one side of the lower die. The mounting component is respectively arranged on the lower die and the cooling panel. The adding component is arranged on the cooling panel. The auxiliary component is arranged on the protective panel.

2. The cold heading forming tool for large chamfer bolts according to claim 1, wherein, The mounting component includes a placement frame and a force applying block. The placement frame is fixedly connected to the lower die and is detachably connected to the cooling panel; The force applying block is fixedly connected to the cooling panel and is located on one side of the cooling panel.

3. The cold heading forming tool for large chamfer bolts according to claim 1, wherein, The adding component includes an injection pipe and a nut. The injection pipe is fixedly connected to the cooling panel and is located on one side of the cooling panel; The nut is threadedly connected to the injection pipe and is located on one side of the injection pipe.

4. The cold heading forming tool for large chamfer bolts according to claim 1, wherein, The auxiliary component includes a handle and a stabilizing member. The handle is fixedly connected to the protective panel and is located on one side of the protective panel; The protective panel is connected to the lower die through the stabilizing member.

5. The cold heading forming tool for large chamfer bolts according to claim 4, wherein, The stabilizing member includes a threaded track and a locking bolt. The threaded track is fixedly connected to the lower die and is located on one side of the lower die; The locking bolt is detachably connected to the protective panel and is threadedly connected to the threaded track.

Images