Spring prestressing processor

Abstract

The utility model relates to the technical field of spring processing, in particular to a spring prestressing processor which comprises a heating device, a spring pressing device, a tightening device, a heat preservation device, a tripping device and a spring sleeve. The pressure spring device comprises a pressure spring block installed at the end of the telescopic rod, an annular pressing block is arranged close to the pressure spring block and used for extruding a pressing rod of the clamping device, and the clamping device is used for positioning and fixing the spring sleeve. The spring sleeve is matched with the heat preservation device, so that the compressed spring can enter the heat preservation device for heat preservation in a compressed state, the situation that the pressure spring device always provides the pressure needed for keeping the compression amount is avoided, and the production efficiency is improved; the spring pressing device is matched with the spring sleeve, and the tripping device is matched with the spring sleeve, so that ordered line production can be realized, and the device is suitable for large-scale hot prestressing processing of springs.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring processing technical field, concretely is a kind of spring strong pressure processing machine. BACKGROUND

[0002] The strong pressure processing mode of spring includes hot strong pressure processing, and the hot strong pressure processing includes the following steps:

[0003] 1, heating: heating spring to set temperature within set time;

[0004] 2, pressurization: the spring heated to set temperature is compressed predetermined compression under uniform pressure;

[0005] 3, heat preservation: after reaching predetermined compression, keep a period of time at set temperature;

[0006] 4, cooling: after heat preservation stage is completed, remove pressure and make spring cool.

[0007] The working process of existing spring strong pressure processing device is that spring is heated after passing through heating device, pressure source is provided to spring device to compress spring and keep, while heating device provides temperature required for heat preservation, until a certain time, pressure source is removed by spring device, and the strong pressure processing of spring is completed. In this process, the pressure source is always provided by the spring device, so that the strong pressure processing of a group of springs can only be completed to start the strong pressure processing of the next group of springs, and the production efficiency is reduced. UTILITY MODEL CONTENTS

[0008] The utility model aims at providing a kind of spring strong pressure processing machine, to solve the problems presented in the above background art, in which the pressure keeping in heat preservation process is separated from spring device.

[0009] To achieve the above object, the utility model provides the following technical scheme: a kind of spring strong pressure processing machine, including spring sleeve, heating device and heat preservation device, the discharge outlet of the heating device and the inlet of the heat preservation device are provided with spring device, the spring pressed into the spring sleeve and engaged are pushed, the clamping device of the spring sleeve below is positioned and fixed;The release device of the spring sleeve and the spring pressed between the engaged state is arranged on one side of the discharge outlet of the heat preservation device, the clamping device is also arranged below the release device, and the release device is same with the spring device.

[0010] Preferably, the spring sleeve is a rectangular parallelepiped with one end open, a cylindrical cavity is formed in the spring sleeve, the diameter of the cylindrical cavity is greater than the outer diameter of the compressed spring; rectangular cavities are formed in the interiors of the four corners of the spring sleeve, clamping devices are slidably connected in the rectangular cavities, the clamping devices comprise press-type spring buckles, the top surfaces of the press-type spring buckles are fixedly connected with press rods, the press rods pass through the top surface of the spring sleeve and are slidably connected with the spring sleeve; a sliding block cavity is formed in the lower part of the press-type spring buckle, a sliding block is slidably arranged in the sliding block cavity, an inclined surface is arranged on the free end of the sliding block, a first spring is arranged between the sliding block and the bottom surface of the sliding block cavity, a sliding block hole is formed in the side wall of the spring sleeve, and the free end of the sliding block can pass through the sliding block hole and enter the cylindrical cavity of the spring sleeve.

[0011] Preferably, the clamping device comprises a gear, the gear is in engagement with a rack, the rack is arranged in two groups and oppositely arranged, the upper side of the rack near the end is fixedly connected with a V-shaped block through a connecting block, the included angle of the V-shaped block is a right angle, and the end of one group of the rack is fixedly connected with the output end of the first air cylinder.

[0012] Preferably, the press spring device comprises a first air cylinder and a telescopic rod, the output end of the telescopic rod is fixedly connected with a press spring block, the press spring block is arranged in four groups and is uniformly distributed along the circumferential surface of the telescopic rod, the maximum distance between the two groups of press spring blocks in opposite relation is greater than the pitch diameter of the compressed spring and is less than the diameter of the cylindrical cavity of the spring sleeve; an annular pressing block is arranged on the telescopic rod, the annular pressing block is fixedly connected with the telescopic rod through a connecting rod, and the annular pressing block is arranged close to the press spring block.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、Through setting up spring sleeve and heat preservation device, press spring device compresses compressed spring into spring sleeve and limits spring through clamping device, pressure source that maintains compressed amount is provided by spring sleeve, compressed spring and spring sleeve can enter heat preservation device to carry out heat preservation process, and press spring device can carry out compression work of next group, so that the pressure required for maintaining the compression amount is avoided to be provided by the press spring device all the time, and the production efficiency is improved.

[0015] 2、Through setting up spring sleeve, heating device, press spring device, clamping device, heat preservation device and trip device, the cooperation between the press spring device and the spring sleeve and the cooperation between the trip device and the spring sleeve can realize orderly flow operation, and the utility model is suitable for large-scale spring hot strength compression processing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a whole structure schematic diagram;

[0017] Figure 2 The overall mechanism schematic diagram of the spring sleeve;

[0018] Figure 3 The structure schematic diagram of the spring sleeve after cutting the side wall in the tripped state;

[0019] Figure 4 The structure schematic diagram of the spring sleeve after cutting the side wall and the rectangular block in the clamping state;

[0020] Figure 5 The mechanism schematic diagram of the clamping device;

[0021] Figure 6 The structure schematic diagram of the spring pressing device.

[0022] In the figure: heating device 1, spring pressing device 2, first air cylinder 201, telescopic rod 202, spring pressing block 203, annular pressing block 204, connecting rod 205, spring sleeve 3, pressing type spring buckle 301, pressing rod 302, rectangular block 303, connecting rod 304, guide groove 305, first spring 306, sliding block hole 307, sliding block 308, second spring 309, clamping device 4, gear 401, rack 402, V-shaped block 403, second air cylinder 404, heat preservation device 5, tripping device 6, platform plate 7, pressed spring 8. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0024] Please refer to the drawings, the utility model provides a technical scheme: a spring strong pressure processing machine, including spring sleeve 3, heating device 1, platform plate 7 and heat preservation device 5, the discharge port of heating device 1 and the feed inlet of heat preservation device 5 are provided with the spring pressing device 2 that pushes the pressed spring 8 into spring sleeve 3 and engages, the clamping device 4 that the spring sleeve 3 is positioned and fixed is provided below the spring pressing device 2;The discharge port side of heat preservation device 5 is provided with the tripping device 6 that removes the engagement state between spring sleeve 3 and pressed spring 8, the clamping device 4 is also provided below tripping device 6, and tripping device 6 is same with spring pressing device 2. Of course, conveying device is provided between heating device 1 and spring pressing device 2, between spring pressing device 2 and heat preservation device 5 and between heat preservation device 5 and tripping device 6, and conveying device sends heated spring sleeve 3 and pressed spring 8 to the set point on platform plate 7, conveying device can use the prior art that can realize the function of fixed-point transmission, can be mechanical arm, can be the device that transmission roller and position sensor cooperate etc.

[0025] Spring sleeve 3 is a long rectangular body with one end opening, the outer contour of the horizontal cross section of spring sleeve 3 is square, a cylindrical cavity is formed in spring sleeve 3, and the diameter of the cylindrical cavity is slightly larger than the outer diameter of the pressed spring 8; rectangular cavities are formed in the interiors of the four corners of spring sleeve 3, and clamping devices are slidably connected in the rectangular cavities, the clamping devices include press-type spring buckles 301, the top surfaces of the press-type spring buckles 301 are fixedly connected with pressing rods 302, the pressing rods 302 pass through the top surfaces of spring sleeve 3 and are slidably connected with spring sleeve 3, sliding block cavities are formed in the lower parts of the press-type spring buckles 301, sliding blocks 308 are slidably arranged in the sliding block cavities, the upper surfaces of the free ends of the sliding blocks 308 are inclined surfaces, the included angle between the inclined surfaces and the horizontal plane is greater than 45 degrees, second springs 309 are arranged between the sliding blocks 308 and the bottom surfaces of the sliding block cavities, sliding block holes 307 are formed in the side walls of spring sleeve 3, and the free ends of the sliding blocks 308 can pass through the sliding block holes 307 and enter the cylindrical cavities of spring sleeve 3. The press-type spring buckles 301 in the application are prior art, for example, the TF card seat of a mobile phone adopts the press-type spring buckle 301 device to lock and release the TF card, and the specific structures of the rectangular blocks 303, guide grooves 305, connecting rods 304, pressing rods 302 and first springs 306 and the connection modes therebetween in the application will not be described here.

[0026] The clamping device 4 comprises a gear 401 which is in gear engagement with two sets of racks 402 which are oppositely arranged and in Z shape. The gear 401 and the racks 402 are located in corresponding cavities in the platform plate 7. The racks 402 are in sliding connection with the platform plate 7. The upper side of the end of the racks 402 is fixedly connected with a connecting block. The upper end of the connecting block is fixedly connected with the symmetric center of the lower end of a V-shaped block 403. The angle of the V-shaped block 403 is a right angle. The V-shaped block 403 is located on the upper end of the platform plate 7 and is spaced apart from the platform plate 7. The end of one set of racks 402 is fixedly connected with the output end of a second air cylinder 404.

[0027] The compression spring device 2 comprises a first air cylinder 201 and a telescopic rod 202. The output end of the telescopic rod 202 is fixedly connected with a compression spring block 203. The compression spring block 203 is in four sets and is uniformly distributed along the circumferential surface of the telescopic rod 202. The maximum distance between the two sets of compression spring blocks 203 is greater than the diameter of the compressed spring 8 and less than the diameter of the cylindrical cavity of the spring sleeve 3. It should be noted that the compression spring blocks 203 need to be staggered with the four corners of the spring sleeve 3 when installed to avoid interference between the compression spring blocks 203 and the sliding block 308 during the compression process. An annular compression block 204 is arranged above the compression spring block 203. The annular compression block 204 is fixedly connected with the telescopic rod 202 through a connecting rod 205. The diameter of the circle on which the four sets of pressing rods 302 are arranged on the spring sleeve 3 is greater than the inner diameter of the annular compression block 204 and less than the outer diameter of the annular block.

[0028] In use of the device, first, the compressed spring 8 to be treated by hot pressing is put into the spring sleeve 3 by artificial or automatic device, then the spring sleeve 3 and the compressed spring 8 are sent to the heating device 1 in batches by mechanical arm or step transmission system, after meeting the heating process requirement of hot pressing treatment, the spring sleeve 3 and the compressed spring 8 at the discharge port of the heating device 1 are sent to the set point on the platform plate 7 by the conveying device, at this time, the second cylinder 404 works, the two groups of V-shaped blocks 403 are driven to move towards each other by the intermeshing rack 402 and gear 401, and gradually clamp the spring sleeve 3, then the first cylinder 201 works, the telescopic rod 202 moves downward, in the process of downward movement of the telescopic rod 202, the spring pressing block 203 will first contact and press the compressed spring 8 downward, until the highest point of the compressed spring 8 is lower than the sliding block hole 307 on the side wall of the spring sleeve 3, then the annular pressing block 204 contacts and presses the pressing rod 302 to make the rectangular block 303 of the pressing type spring buckle 301 slide downward, in the process of downward sliding of the rectangular block 303, the connecting rod 304 will move along the guide groove 305 to the top of the guide groove 305, at this time, the free end of the sliding block 308 has also slid out of the sliding block groove and enters the spring sleeve 3 through the sliding block hole 307, then the telescopic rod 202 of the first cylinder 201 reversely moves, the compressed spring 8 reversely moves a small distance and is clamped by the sliding block 308, at this time, the spring pressing block 203 is out of contact with the compressed spring 8, the clamped compressed spring 8 makes the rectangular block 303 move upward through the sliding block 308, so that the connecting rod 304 enters the recess from the highest point of the guide groove 305, at this time, the connecting rod 304 is clamped in the recess in the guide groove 305, thereby limiting the position of the compressed spring 8, of course, the position of the sliding block hole 307 of the spring sleeve 3 is the limiting position generated by the clamping device, which meets the compression amount required by the hot pressing treatment process of this kind of spring, then the telescopic rod 202 continues to move upward, the annular pressing block 204 is out of contact with the pressing rod 302, at this time, the spring pressing step is completed, then the clamping device 4 is opened, the spring sleeve 3 is conveyed to the heat preservation device 5 by the conveying device for heat preservation for a certain time, then the spring sleeve 3 at the discharge port of the heat preservation device 5 is conveyed to the set point on the platform plate 7 at the release device 6 by the conveying device, the clamping device 4 clamps the spring sleeve 3, the release device 6 works, the release working process is the same as that the spring pressing block 203 of the spring pressing device presses the compressed spring 8 a small distance, the annular pressing block 204 presses the pressing rod 302, so that the connecting rod 304 is at the highest point of the guide groove 305, then the telescopic rod 202 reversely moves, the compressed spring 8 presses the sliding block 308 and makes the rectangular block 303 move upward, the connecting rod 304 moves downward relative to the rectangular block 303 along the guide groove 305 to the lowest point of the guide groove 305, in the process of upward movement of the sliding block 308, the sliding block hole 307 wall contacts and presses the inclined surface of the sliding block 308, so that the sliding block 308 slides into the sliding block groove, the telescopic rod 202 continues to move upward, the annular pressing block 204 is out of contact with the pressing rod 302, the spring pressing block 203 is out of contact with the compressed spring 8,The telescopic rod 202 resets, then the clamping mechanism resets, the tripping process is completed, and finally the spring sleeve 3 is separated from the compressed spring 8 through the turnover mechanism or manually.

[0029] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spring power press machine characterized by: The device comprises a spring sleeve (3), a heating device (1) and a heat preservation device (5), a compressed spring pushing device (2) is arranged between the outlet of the heating device (1) and the inlet of the heat preservation device (5) to push the compressed spring (8) into the spring sleeve (3) and engage, a clamping device (4) is arranged below the compressed spring pushing device (2) to position and fix the spring sleeve (3); a tripping device (6) is arranged on one side of the outlet of the heat preservation device (5) to release the engagement between the spring sleeve (3) and the compressed spring (8), the clamping device (4) is also arranged below the tripping device (6), and the tripping device (6) is the same as the compressed spring pushing device (2).

2. A spring power press machine as claimed in claim 1, wherein: The spring sleeve (3) is a rectangular parallelepiped with one end open, a cylindrical cavity is formed in the spring sleeve (3), the diameter of the cylindrical cavity is greater than the outer diameter of the compressed spring (8); rectangular cavities are formed in the interiors of four corners of the spring sleeve (3), a clamping device is slidably connected in the rectangular cavities, the clamping device comprises a press spring buckle (301), the top surface of the press spring buckle (301) is fixedly connected with a pressing rod (302), the pressing rod (302) penetrates through the top surface of the spring sleeve (3) and is slidably connected with the spring sleeve (3); a sliding block cavity is formed in the lower part of the press spring buckle (301), a sliding block (308) is slidably arranged in the sliding block cavity, an inclined surface is arranged on the free end of the sliding block (308), a second spring (309) is arranged between the sliding block (308) and the bottom surface of the sliding block cavity, a sliding block hole (307) is formed in the side wall of the spring sleeve (3), and the free end of the sliding block (308) can pass through the sliding block hole (307) to enter the cylindrical cavity of the spring sleeve (3).

3. A spring power press machine as claimed in claim 1 wherein: The clamping device (4) comprises a gear (401) and a rack (402), the gear (401) is engaged with the rack (402), the rack (402) is arranged in two groups and oppositely, the upper side of the rack (402) close to the end is fixedly connected with a V-shaped block (403) through a connecting block, the included angle of the V-shaped block (403) is a right angle, and the end of one group of the rack (402) is fixedly connected with the output end of a second air cylinder (404).

4. The spring power press machine of claim 1, wherein: The compressed spring pushing device (2) comprises a first air cylinder (201) and a telescopic rod (202), the output end of the telescopic rod (202) is fixedly connected with a compressed spring block (203), the compressed spring block (203) is arranged in four groups and is uniformly distributed along the circumferential surface of the telescopic rod (202), the maximum distance between the two groups of compressed spring blocks (203) opposite to each other is greater than the pitch diameter of the compressed spring (8) and less than the diameter of the cylindrical cavity of the spring sleeve (3); an annular pressing block (204) is arranged on the telescopic rod (202), the annular pressing block (204) is fixedly connected with the telescopic rod (202) through a connecting rod (205), and the position of the annular pressing block (204) is close to the compressed spring block (203).

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