Hot coiling spring positioning clamping jaw

Abstract

The utility model relates to the technical field of hot coiling springs, in particular to a hot coiling spring positioning clamping jaw which comprises a mandrel body, a positioning mechanism is arranged on the right surface of the mandrel body and comprises a positioning sleeve, and the right surface of the positioning sleeve is rotationally connected with a clamping jaw supporting block. A limiting rod is fixedly connected to the right surface of the clamping jaw supporting block, a positioning clamping jaw penetrates through the right surface of the limiting rod, the limiting rod is slidably connected with the positioning clamping jaw, and first clamping grooves are formed in the right surface of the clamping jaw supporting block in a circumferential array shape; through the arrangement of the positioning sleeve, the limiting rod, the positioning clamping jaw, the first plug pin, the second plug pin and the clamping jaw supporting block, the vertical position and the positioning angle of the positioning clamping jaw can be limited, and after a spring bar is clamped, the clamping jaw supporting block is fixed through the first plug pin and the second plug pin; and meanwhile, the positioning clamping jaw is controlled to move left and right through the clamping air cylinder and the long double-end pull rod, and the ends of the spring bars with different diameters can be fixed conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot coil spring technical field, concretely is a kind of hot coil spring positioning dog. BACKGROUND

[0002] When winding large spring, hot coil spring machine is often used to complete, the existing method is, steel bar is placed between dog and mandrel by artificial, and then, hot coil spring machine is started, dog clamps steel bar head, and steel bar is wound on mandrel, to complete the winding of spring.

[0003] Through search, China public number CN 202804023 U discloses a kind of hot coil spring machine clamping device, the hot coil spring machine clamping device includes turntable and mandrel, opening, round hole and positioning hole are equipped in the turntable, and rotating shaft, lever and compression spring are also installed in the round hole of the turntable, the lever is connected with the turntable by rotating shaft, lever can rotate around rotating shaft, one end of the lever is equipped with dog, the other end of the lever is equipped with spherical head, the left end of the compression spring is installed in positioning hole, the right end of the compression spring is pressed against the spherical head of lever, the right end of the dog is shaped as hook shape.The utility model has reasonable structure, clamping is reliable, does not turn head, and efficiency is high.

[0004] But since spring bar material itself is heated, temperature is about 1000 DEG C, so that the part grabbed by dog cannot be adjusted with the deflection angle of end tip by rotating with spring winding machine, to form straight section, in view of this, we propose a kind of hot coil spring positioning dog. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of hot coil spring positioning dog, the hot coil spring positioning dog, solve the problem that most dogs cannot make spring bar material form straight section in the process of use, cause spring bar material manufacturing efficiency to decline.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of hot coil spring positioning dog, including mandrel body, the right surface of the mandrel body is provided with positioning mechanism, the positioning mechanism includes positioning sleeve, the right surface of the positioning sleeve is rotatably connected with dog support block, the right surface of the dog support block is fixedly connected with limiting rod, the right surface of the limiting rod is penetrated by positioning dog and is slidably connected with positioning dog, the right surface of the dog support block is circumferentially arrayed and is equipped with slot one, the inner surface of the slot one is slidably connected with latch one, the right surface of the positioning dog is linearly arrayed and is equipped with slot two, the inner surface of the slot two is slidably connected with latch two, the latch two penetrates limiting rod and is slidably connected with limiting rod.

[0008] Preferably, the right surface of the positioning claw is provided with a sliding groove, and the inner surface of the sliding groove is in sliding connection with the limiting rod.

[0009] Preferably, the two groups of the right surfaces of the first and second plugs are fixedly connected through the connecting rod.

[0010] Preferably, the left surface of the mandrel body is fixedly connected with the clamping air cylinder in a circumferential array, the output shaft of the clamping air cylinder is fixedly connected with the long double-headed pull rod, and the long double-headed pull rod is fixedly connected with the positioning sleeve.

[0011] Preferably, the inner surface of the sliding groove is provided with a protection mechanism, the protection mechanism comprises a U-shaped plate, the U-shaped plate is in sliding connection with the inner surface of the sliding groove, the right surface of the U-shaped plate penetrates through and is in sliding connection with an operating rod, the upper surface of the U-shaped plate penetrates through and is in sliding connection with a third plug, and the third plug penetrates through and is in sliding connection with the limiting rod.

[0012] Preferably, the operating rod is hinged to one end of the support, and the third plug is hinged to the other end of the support.

[0013] Preferably, the inner surface of the U-shaped plate is in contact with the right surface of the connecting rod, and the support and the third plug are both provided with two groups and are symmetrically arranged with the center line of the U-shaped plate as the axis of symmetry.

[0014] By the above technical scheme, the hot coil spring positioning claw is provided.

[0015] (1) The positioning sleeve, the limiting rod, the positioning claw, the first plug, the second plug and the claw supporting block are arranged, so that the up-down and positioning angle of the positioning claw can be limited, the claw supporting block is fixed through the first plug and the second plug after the spring bar stock is clamped, the positioning claw is controlled to move left and right through the clamping air cylinder and the long double-headed pull rod, and the end of the spring bar stock with different diameters is conveniently fixed.

[0016] (2) The U-shaped plate, the operating rod, the third plug and the support are arranged, so that the connecting rod, the first plug and the second plug are limited through the U-shaped plate after the spring bar stock is limited, the connecting rod is ensured to be more stable, and the positioning mechanism is ensured to be more stable. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the principles of the present application.

[0018] Figure 1 It is a whole structure schematic view of the present application.

[0019] Figure 2 The overall structure schematic diagram of the positioning mechanism of the utility model;

[0020] Figure 3 The overall structure schematic diagram of the protection mechanism of the utility model; Figure 2 The structure enlarged schematic diagram of A part in the middle;

[0021] Figure 4 The overall structure schematic diagram of the protection mechanism of the utility model.

[0022] In the figure: 1, the mandrel body; 2, positioning mechanism; 21, positioning sleeve; 22, jaw support block; 23, limit rod; 24, positioning jaw; 25, slot one; 26, bolt one; 27, slot two; 28, bolt two; 29, sliding slot; 210, connecting rod; 211, clamping cylinder; 212, long double-end pull rod; 3, protection mechanism; 31, U-shaped plate; 32, operating rod; 33, bolt three; 34, support. DETAILED DESCRIPTION

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

[0024] Embodiment one

[0025] Please refer to Figures 1-4The utility model provides a kind of hot coil spring positioning dog, including mandrel body 1, the right surface of mandrel body 1 is provided with positioning mechanism 2, positioning mechanism 2 includes positioning sleeve 21, the right surface of positioning sleeve 21 is rotatably connected with dog support block 22, the right surface of dog support block 22 is fixedly connected with limiting rod 23, limiting rod 23 is penetrated with positioning dog 24 and is slidably connected with positioning dog 24, the whole positioning dog 24 and dog inclined iron need T8~T12 material, overall heat treatment quenching, we also make positioning dog 24 into combination, non-plane is used in positioning dog 24 and spring end tip contact portion, and it is using compression ball head, material selection uses W18Cr4V1 high speed steel, overall quenching HRC50~55. When being assembled into an integral, compression ball head is three millimeters higher than clamping tooth surface, the right surface of dog support block 22 is circularly arrayed and is provided with clamping groove one 25, the inner surface of clamping groove one 25 is slidably connected with latch one 26, the cross section shape of latch one 26 is T-shaped, the outer arc surface of latch one 26 is sleeved with spring, one end of latch one 26 is fixed with spring, the other end of spring is fixed with dog support block 22, by this setting, can make latch one 26 firmly be clamped in clamping groove one 25, the limiting of dog support block 22 is carried out, so that dog support block 22 cannot rotate, the right surface of positioning dog 24 is linearly arrayed and is provided with clamping groove two 27, the inner surface of clamping groove two 27 is slidably connected with latch two 28, latch two 28 penetrates limiting rod 23 and is slidably connected with limiting rod 23, the cross section shape of latch two 28 is T-shaped, and its outer arc surface is sleeved with spring, one end of latch two 28 is fixed with spring, the other end of spring is fixed with limiting rod 23, by this setting, the limiting of positioning dog 24 is carried out by latch two 28, so that positioning dog 24 can be more firm, when needing to move positioning dog 24 up and down, it is more convenient, the right surface of positioning dog 24 is provided with sliding slot 29, the inner surface of sliding slot 29 is slidably connected with limiting rod 23, by the cooperation of sliding slot 29 and limiting rod 23, the movement of positioning dog 24 up and down can be more stable, latch one 26 and latch two 28 are provided with two groups, the right surface of two groups of latch one 26 and latch two 28 is fixedly connected through connecting rod 210, by connecting rod 210, latch one 26 and latch two 28 can be connected, connecting rod 210 can drive latch one 26 and latch two 28 simultaneously when being manually pulled, the left surface of mandrel body 1 is circularly arrayed and is fixedly connected with clamping pneumatic cylinder 211, the output shaft of clamping pneumatic cylinder 211 is fixedly connected with long double-head pull rod 212, long double-head pull rod 212 is fixedly connected with positioning sleeve 21, clamping pneumatic cylinder 211 is installed on mandrel body 1 through mounting plate, the mounting plate of clamping pneumatic cylinder 211 is fixed with the hook sleeve that cooperates with crane use.

[0026] In the embodiment, the positioning sleeve 21, the limiting rod 23, the positioning clamping jaw 24, the first bolt 26, the second bolt 28 and the clamping jaw supporting block 22 are arranged, so that the up-down and positioning angle of the positioning clamping jaw 24 can be limited, after the spring bar material is clamped, the clamping jaw supporting block 22 is fixed by the first bolt 26 and the second bolt 28, and the positioning clamping jaw 24 is controlled to move left and right by the clamping cylinder 211 and the long double-end pull rod 212, so that the end of the spring bar material of different lengths can be fixed.

[0027] Embodiment two

[0028] Please refer to Figures 1-4 , on the basis of embodiment one, the utility model provides a technical scheme: preferably, the inner surface of the chute 29 is provided with a protection mechanism 3, the protection mechanism 3 includes U-shaped plate 31, U-shaped plate 31 with the inner surface of the chute 29 slidingly connected, the right surface of U-shaped plate 31 is penetrated with operating lever 32 and is connected with operating lever 32 slidingly, the inner surface of operating lever 32 is provided with spring, operating lever 32 with the one end of spring is fixed, U-shaped plate 31 with the other end of spring is fixed, through this setting, operating lever 32 is more stable, will not fall off when the mandrel body 1 is inclined, the upper surface of U-shaped plate 31 is penetrated with bolt three 33 and is connected with bolt three 33 slidingly, bolt three 33 is penetrated with limiting rod 23 and is connected with limiting rod 23 slidingly, operating lever 32 with the one end of support 34 is hinged, bolt three 33 with the other end of support 34 is hinged, the inner surface of U-shaped plate 31 is in contact with the right surface of connecting rod 210, support 34 and bolt three 33 are provided with two groups and are symmetrically arranged with the center line of U-shaped plate 31 as the axis of symmetry, by two groups of bolt three 33 simultaneously penetrating limiting rod 23, it can guarantee that U-shaped plate 31 is more stable to limit connecting rod 210.

[0029] In the embodiment, by the arrangement of the U-shaped plate 31, the operating lever 32, the bolt three 33 and the support 34, after the spring bar material is limited, the U-shaped plate 31 simultaneously limits the connecting rod 210, the first bolt 26 and the second bolt 28, and guarantees the stability of the whole positioning mechanism 2.

[0030] The working principle is that when the spring rod needs to be fixed, the operating rod 32 is pushed to the inside of the U-shaped plate 31 by artificial means with a tool (for example, pliers), the bolt three 33 is pulled out of the limiting rod 23 through the bracket 34, the U-shaped plate 31 is pulled out of the sliding groove 29, the connecting rod 210 is clamped, and then the connecting rod 210 is pulled to the right, the bolt one 26 and the bolt two 28 are simultaneously pulled to the right, and then the bolt one 26 and the bolt two 28 are pulled out of the clamping groove one 25 and the clamping groove two 27, the clamping jaw support block 22 is rotated, the positioning clamping jaw 24 is rotated to the top of the end of the spring rod, the positioning clamping jaw 24 is moved downward by means of the tool, the end of the spring rod is contacted, the connecting rod 210 is released, the bolt one 26 and the bolt two 28 are re-pulled into the clamping groove one 25 and the clamping groove two 27 through the elastic force of the spring, and the positioning clamping jaw 24 is limited, so that the spring rod is fixed.

[0031] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0032] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A heat coil spring positioning dog comprising a mandrel body (1), characterized in that: The right surface of the mandrel body (1) is provided with a positioning mechanism (2), the positioning mechanism (2) comprises a positioning sleeve (21), the right surface of the positioning sleeve (21) is rotatably connected with a claw supporting block (22), the right surface of the claw supporting block (22) is fixedly connected with a limiting rod (23), the right surface of the limiting rod (23) penetrates and is slidably connected with a positioning claw (24), the right surface of the claw supporting block (22) is circumferentially and arrayedly provided with a clamping groove I (25), the inner surface of the clamping groove I (25) is slidably connected with a bolt I (26), the right surface of the positioning claw (24) is linearly and arrayedly provided with a clamping groove II (27), the inner surface of the clamping groove II (27) is slidably connected with a bolt II (28), and the bolt II (28) penetrates and is slidably connected with the limiting rod (23).

2. A hot coil spring positioning dog according to claim 1, characterized in that: The right surface of the positioning claw (24) is provided with a sliding groove (29), and the inner surface of the sliding groove (29) is slidably connected with the limiting rod (23).

3. A hot coil spring positioning dog according to claim 2, wherein: The bolt I (26) and the bolt II (28) are provided with two groups, and the right surfaces of the two groups of the bolt I (26) and the bolt II (28) are fixedly connected through a connecting rod (210).

4. A hot coil spring positioning dog according to claim 3, wherein: The left surface of the mandrel body (1) is circumferentially and arrayedly fixedly connected with a clamping air cylinder (211), the output shaft of the clamping air cylinder (211) is fixedly connected with a long double-headed pull rod (212), and the long double-headed pull rod (212) is fixedly connected with the positioning sleeve (21).

5. A hot coil spring positioning dog according to claim 4, wherein: The inner surface of the sliding groove (29) is provided with a protection mechanism (3), the protection mechanism (3) comprises a U-shaped plate (31), the U-shaped plate (31) is slidably connected with the inner surface of the sliding groove (29), the right surface of the U-shaped plate (31) penetrates and is slidably connected with an operating rod (32), the upper surface of the U-shaped plate (31) penetrates and is slidably connected with a bolt III (33), and the bolt III (33) penetrates and is slidably connected with the limiting rod (23).

6. A hot coil spring positioning dog according to claim 5, wherein: One end of the operating rod (32) is hinged with a support (34), and the other end of the bolt III (33) is hinged with the support (34).

7. A hot coil spring positioning dog according to claim 6, wherein: The inner surface of the U-shaped plate (31) is in contact with the right surface of the connecting rod (210), and the support (34) and the bolt III (33) are both provided with two groups and are symmetrically arranged with the center line of the U-shaped plate (31) as the axis of symmetry.

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