Fixed blade flange riveting die

Abstract

The application relates to the technical field of riveting dies, in particular to a fixed-plate flange riveting die which comprises a hydraulic die press and further comprises a riveting die, the riveting die comprises a lower die table, an upper die table, a placing table, a pressure joint block, a supporting piece and a guide wheel, the lower die table is fixed on the workbench of the hydraulic die press, the lower die table is fixed on the hydraulic end of the hydraulic die press, a plurality of guide assemblies are arranged between the lower die table and the upper die table, the placing table is fixed on the lower die table, the pressure joint block is fixed on the upper die table, the pressure joint block is located on the placing table, the bottom of the pressure joint block and the top of the placing table are both provided with two riveting interfaces, the two riveting interfaces on the top and the two riveting interfaces on the bottom are one-to-one aligned, the top of the placing table is provided with a placing groove, the placing groove transversely passes through the two riveting interfaces on the top of the placing table, the positioning mode of the application is simple and not complicated, manual assistance is not needed, and the application is suitable for fast production.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of riveting dies, and particularly relates to a fixed flange riveting die. BACKGROUND

[0002] A tubular electric heating element (hereinafter referred to as an electric heating tube) is an electric appliance element that converts electric energy into heat energy. It is a metal tube as an outer shell (including stainless steel, copper pipe), along the central axis of the tube, evenly distributed spiral electric heating alloy wire (nickel-chromium, iron-chromium alloy), and the interstices are filled with compacted magnesium oxide sand with good insulation and heat conduction performance, and the tube is sealed at both ends with silica gel. This kind of metal armored electric heating element can heat air, metal molds and various liquids. Common electric heating tubes include finned electric heating tubes, Teflon electric heating tubes, quartz electric heating tubes, etc. Due to its low price, convenient use, easy installation and no pollution, it is widely used in various heating occasions.

[0003] At present, the fixed flange riveting die in the daily tubular electric heating element industry is relatively simple, without positioning device, and riveting needs manual assistance to press the product tightly to limit the riveting size. This manual positioning causes large fluctuation of the riveting size of the product, poor consistency, and high product scrap rate. This riveting mode needs manual assistance operation, cannot achieve two-handed operation, is time-consuming and laborious, has high labor intensity, and seriously affects the production efficiency. Therefore, we design a riveting die with positioning function for the existing spiral tubular electric heating element (as shown in the prior art Figure 6 a represents the spiral tube body, b represents the fixed flange, and c represents the riveting sleeve part). SUMMARY

[0004] The present application aims to provide a fixed flange riveting die to solve the problems in the background art.

[0005] The technical scheme of the present application is as follows: a fixed flange riveting die, comprising a hydraulic die press, further comprising:

[0006] The riveting die comprises a lower die table, an upper die table, a placing table, a pressure joint block, a support and a guide wheel, the lower die table is fixed on the workbench of a hydraulic pressure die machine, the lower die table is fixed on the hydraulic end of the hydraulic pressure die machine, a plurality of guide assemblies are arranged between the lower die table and the upper die table, the placing table is fixed on the lower die table, the pressure joint block is fixed on the upper die table, the pressure joint block is located on the placing table, the bottom of the pressure joint block and the top of the placing table are both provided with two riveting interfaces, the two riveting interfaces on the top and the two riveting interfaces on the bottom are aligned one by one, the top of the placing table is provided with a placing groove, the placing groove transversely passes through the two riveting interfaces on the top of the placing table, the pressure joint block and the placing groove are staggered with each other, the support is fixed on the pressure joint block, the bottom of the support is provided with a groove, and the both ends of the guide wheel are rotatably installed on the inner walls on the left and right sides of the groove.

[0007] Preferably, the circumferential outer wall of the guide wheel is provided with an annular groove coaxially arranged.

[0008] Preferably, the front outer wall of the lower die table is fixed with a limiting block, and the limiting block is adjacent to the placing table.

[0009] Preferably, the guide assembly comprises a guide cylinder and a guide column slidably installed in the guide cylinder, the guide cylinder is fixed on the upper die table, the guide column is fixed on the lower die table, the guide column is sleeved with a buffer spring, and the both ends of the buffer spring are in contact with the guide cylinder and the lower die table respectively.

[0010] Preferably, gratings are installed on the left and right sides of the hydraulic pressure die machine, and the riveting die is located between the gratings.

[0011] Preferably, a controller is installed in the hydraulic pressure die machine, and the gratings and the hydraulic pressure die machine are electrically connected with the controller.

[0012] The riveting die for fixing the flange of the sheet provided by the application has the following improvements and advantages compared with the prior art.

[0013] The flange of the sheet is sleeved on the both ends of the spiral pipe body (for example Figure 6As shown in the drawing), and then the fixed flange b is placed in the placement slot 310 on the placement table 309, at this time the two riveting sleeves c on the fixed flange b are placed in the two riveting interfaces 311, and then the spiral pipe body a is in contact with the front side outer wall of the placement table 309, and the spiral pipe body a is in contact with the limiting block 312, the hydraulic pressure molding machine 1 is started, the upper mold table 305 is lowered, the guide wheel 308 on the upper mold table 305 is in contact with the outer wall of the spiral pipe body a on the front side, that is, the ring groove of the guide wheel 308 is in contact with the spiral pipe body a, so that the spiral pipe body a is kept in contact with the placement table 309, thereby preventing the spiral pipe body a from moving forward and backward, and preventing the spiral pipe body a from sliding relative to the guide wheel 308, until the two riveting interfaces 311 in the upper and lower positions are deformed to press the riveting sleeve c, so that the riveting sleeve c is fixed on the spiral pipe body a. It can be seen that the positioning mode of the device is simple and not complex, and does not need manual assistance, and is suitable for fast production. BRIEF DESCRIPTION OF DRAWINGS

[0014] The application will be further explained in conjunction with the drawings and examples:

[0015] Figure 1 is a schematic diagram of the overall structure of the application;

[0016] Figure 2 is a schematic diagram of the first perspective view of the riveting die of the application;

[0017] Figure 3 is a schematic diagram of the second perspective view of the riveting die of the application;

[0018] Figure 4 is Figure 3 is a schematic diagram of the enlarged structure of the boxed part of

[0019] Figure 5 is a working schematic diagram of the application;

[0020] Figure 6 is a schematic diagram of the perspective view of the existing spiral pipe-shaped electric heating element.

[0021] BRIEF DESCRIPTION OF DRAWINGS:

[0022] 1, hydraulic pressure molding machine; 2, grating; 3, riveting die; 301, lower mold table; 302, guide column; 303, buffer spring; 304, guide cylinder; 305, upper mold table; 306, pressure block; 307, support; 308, guide wheel; 309, placement table; 310, placement slot; 311, riveting interface; 312, limiting block. DETAILED DESCRIPTION

[0023] The present application will be described in detail below, and the technical solutions in the embodiments of the present application will be clearly and completely described.The described embodiments are obviously only some of the embodiments of the present application, rather than all the embodiments.Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] The present application provides a fixed sheet flange riveting die by improvement, and the technical solutions of the present application are:

[0025] As shown in Figures 1-6 , a fixed sheet flange riveting die, comprising a hydraulic press 1, further comprising;

[0026] The riveting die 3 comprises a lower die table 301, an upper die table 305, a placement table 309, a pressure bonding block 306, a support 307 and a guide wheel 308, the lower die table 301 is fixed on the workbench of the hydraulic press 1, the lower die table 301 is fixed on the hydraulic end of the hydraulic press 1, a plurality of guide assemblies are arranged between the lower die table 301 and the upper die table 305, the placement table 309 is fixed on the lower die table 301, the pressure bonding block 306 is fixed on the upper die table 305, the pressure bonding block 306 is located on the placement table 309, the bottom of the pressure bonding block 306 and the top of the placement table 309 are both provided with two riveting interfaces 311, the two riveting interfaces 311 on the top and the two riveting interfaces 311 on the bottom are one-to-one aligned, the top of the placement table 309 is provided with a placement groove 310, the placement groove 310 transversely passes through the two riveting interfaces 311 on the top of the placement table 309, the pressure bonding block 306 and the placement groove 310 are staggered with each other, the support 307 is fixed on the pressure bonding block 306, the bottom of the support 307 is provided with a recess, the two ends of the guide wheel 308 are rotatably installed on the inner walls on the left and right sides of the recess, and the front side outer wall of the placement table 309 is coplanar with the front side outer wall of the lower die table 301.

[0027] The technical solutions of the present application are that the fixed sheet flange b is sleeved on the two ends of the spiral pipe body a (as shown in Figure 6 ), then the fixed sheet flange b is placed in the placement groove 310 on the placement table 309, at this time, the two riveting sleeves c on the fixed sheet flange b are placed in the two riveting interfaces 311, then the spiral pipe body a is in contact with the front side outer wall of the placement table 309, the hydraulic press 1 is started, the upper die table 305 moves downward, the guide wheel 308 on the upper die table 305 is in contact with the outer wall on the front side of the spiral pipe body a, the spiral pipe body a is kept in contact with the placement table 309, so as to prevent the spiral pipe body a from moving forward and backward, until the two upper and lower riveting interfaces 311 in alignment extrude and deform the riveting sleeve c, so that the riveting sleeve c is fixed on the spiral pipe body a.

[0028] Preferably, the outer wall of the circumference of the guide wheel 308 is provided with a ring groove coaxially arranged with it, which is matched with the spiral pipe body a. During the downward movement of the upper die table 305, the ring groove of the guide wheel 308 is matched with the spiral pipe body a, so that the relative sliding between the spiral pipe body a and the guide wheel 308 is prevented.

[0029] Preferably, the front side outer wall of the lower die table 301 is fixed with a limiting block 312 adjacent to the placing table 309. When the spiral pipe body a is in contact with the front side outer wall of the placing table 309, the spiral pipe body a is in contact with the limiting block 312, so that the rotation of the spiral pipe body a during the riveting process is prevented.

[0030] Preferably, the guide assembly comprises a guide cylinder 304 and a guide column 302 slidingly installed in the guide cylinder 304. The guide cylinder 304 is fixed on the upper die table 305, and the guide column 302 is fixed on the lower die table 301. The guide column 302 is sleeved with a buffer spring 303, and the two ends of the buffer spring 303 are in contact with the guide cylinder 304 and the lower die table 301, respectively.

[0031] Preferably, the left and right sides of the hydraulic press 1 are both provided with a grating 2, and the riveting die 3 is located between the gratings 2. The hydraulic press 1 is provided with a controller, and the gratings 2 and the hydraulic press 1 are both electrically connected with the controller. When the limbs of workers enter the left and right sides of the hydraulic press 1, the gratings 2 detect it, so that the controller makes the hydraulic press 1 stop working immediately, preventing the workers from being injured by mistake.

[0032] Working principle: the fixed flange b is sleeved on both ends of the spiral pipe body a (as shown in Figure 6 ), and then the fixed flange b is placed in the placing groove 310 on the placing table 309. At this time, the two riveting sleeves c on the fixed flange b are placed in the two riveting openings 311. Then, the spiral pipe body a is in contact with the front side outer wall of the placing table 309, and the spiral pipe body a is in contact with the limiting block 312. The hydraulic press 1 is started, the upper die table 305 is moved downward, the guide wheel 308 on the upper die table 305 is in contact with the outer wall of the front side of the spiral pipe body a, that is, the ring groove of the guide wheel 308 is matched with the spiral pipe body a, so that the spiral pipe body a is kept in contact with the placing table 309, preventing the spiral pipe body a from moving forward and backward, and preventing the relative sliding between the spiral pipe body a and the guide wheel 308. Until the two riveting openings 311 above and below are aligned to deform the riveting sleeve c, the riveting sleeve c is fixed on the spiral pipe body a.

[0033] The foregoing description enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A stator flange riveting die, comprising a hydraulic die press (1), characterized in that: Also includes; A riveting die (3), the riveting die (3) comprising a lower die table (301), an upper die table (305), a placement table (309), a crimping block (306), a support member (307) and a guide wheel (308), wherein the lower die table (301) is fixed on a working table of a hydraulic die press (1), the lower die table (301) is fixed on a hydraulic end of the hydraulic die press (1), a plurality of guide components are provided between the lower die table (301) and the upper die table (305), the placement table (309) is fixed on the lower die table (301), the crimping block (306) is fixed on the upper die table (305), the crimping block (306) is located above the placement table (309), the bottom of the crimping block (306) and the placement The top of the platform (309) is provided with two rivet joints (311), and the two rivet joints (311) on the top and the two rivet joints (311) on the bottom are aligned one to one. The top of the placement platform (309) is provided with a placement groove (310), and the placement groove (310) crosses the two rivet joints (311) on the top of the placement platform (309). The crimping block (306) and the placement groove (310) are staggered with each other. The support member (307) is fixed on the crimping block (306), and the bottom of the support member (307) is provided with a groove. The two ends of the guide wheel (308) are rotatably mounted on the left and right inner walls of the groove respectively. The front outer wall of the placement platform (309) is coplanar with the front outer wall of the lower mold platform (301); The outer circumferential wall of the guide wheel (308) is provided with an annular groove coaxially arranged therewith; A limiting block (312) is fixed to the front outer wall of the lower die platform (301), and the limiting block (312) is adjacent to the placement platform (309).

2. The fixing flange riveting die according to claim 1, characterized in that: The guide assembly comprises a guide cylinder (304) and a guide column (302) slidably mounted in the guide cylinder (304); the guide cylinder (304) is fixed on an upper die table (305); the guide column (302) is fixed on a lower die table (301); a buffer spring (303) is sleeved on the guide column (302); and two ends of the buffer spring (303) are in contact with the guide cylinder (304) and the lower die table (301), respectively.

3. The fixing flange riveting die according to claim 1, characterized in that: Gratings (2) are installed on both the left and right sides of the hydraulic die press (1), and the riveting die (3) is located between the gratings (2).

4. The fixing flange riveting die according to claim 3, characterized in that: A controller is installed in the hydraulic molding machine (1), and the grating (2) and the hydraulic molding machine (1) are both electrically connected to the controller.

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