Pendant hook for quenching elastic strip

Abstract

The utility model discloses a pendant hook for quenching an elastic strip, which comprises a hook base, two hooks, four fixing screws and two pressing plates, the two hooks have the same structure and are formed by bending stainless steel, the hook base comprises a first accommodating part, a long strip part and a second accommodating part, the top surfaces of the first accommodating part and the second accommodating part are both provided with long grooves, cushion blocks are fixedly arranged in the long grooves, and the cushion blocks are arranged on the long strip part. Two threaded through holes are formed in the top surface and the bottom surface of each of the first storage part and the second storage part in a penetrating manner; the first ends of the two hooks are installed in the corresponding long grooves respectively, and the second ends of the two hooks are both return hooks. Each pressing plate is provided with two second through holes, and the positions of the two second through holes correspond to the positions of the two threaded through holes. The four fixing screws are used for fixing the two pressing plates to the first containing part and the second containing part respectively. The hanging hook for quenching the elastic strip can reduce shaking of the elastic strip when the elastic strip enters liquid quickly for quenching, ensures that the elastic strip is not separated from the hanging hook, does not swing when a mechanical arm takes a piece, and is high in piece taking efficiency.

Description

Technical Field

[0001] The utility model belongs to the field of railway facilities, in particular to a hanging hook for quenching spring bars. Background Art

[0002] Spring clips are commonly used fasteners for fastening rails during railway construction. They are usually manufactured by first undergoing a hot stamping process and then a quenching process. In the prior art, a hanger hook that carries the spring clip for quenching after hot stamping adopts a single hook. The contact point between the spring clip and the hanger hook is the center of the spring clip, which causes the spring clip to easily become unhooked and fall into the quenching pool during rapid liquid quenching. In addition, the spring clip shakes greatly when a robot is used to pick up the clip, resulting in unstable and low efficiency in picking up the clip. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a hanging hook for spring bar quenching, comprising: a hook base, two hooks with the same structure and bent from stainless steel, four fixing screws, and two pressing plates;

[0004] in,

[0005] The hook base includes a first receiving portion, a long strip portion, and a second receiving portion in sequence along its length direction to form an integral structure, and the first receiving portion and the second receiving portion have the same structure, and at least one long groove is provided on the top surface of any receiving portion, and the length direction of the long groove is parallel to the width direction of the hook base, and the two ends of the long groove extend to two opposite end surfaces of the corresponding receiving portion parallel to the length direction of the hook base, and a pad is fixedly arranged in the long groove, and the width of the long groove is the same as the diameter of the first end of the hook, and the depth of the long groove is equal to the sum of the diameter of the first end of the hook and the height of the pad, and two threaded through holes are penetrated on the top surface and the bottom surface of any receiving portion;

[0006] The first ends of the two hooks are respectively installed in the corresponding long grooves, the bearing parts of the two hooks are respectively used to hook the two front ends of the elastic strip, and the second ends of the two hooks are return hooks;

[0007] Each pressing plate is provided with two second through holes, and the positions of the two second through holes correspond to the positions of the two threaded through holes;

[0008] The four fixing screws are used to fix the two pressing plates on the first receiving portion and the second receiving portion respectively through the two second through holes and the two threaded through holes.

[0009] Furthermore, two first through holes are arranged on two opposite end surfaces of the long strip portion parallel to the length direction of the hook base.

[0010] Furthermore, when the number of the long slot is one, two threaded through holes are respectively arranged on the corresponding receiving portion and on both sides of the long slot along the length direction of the hook base.

[0011] Furthermore, when the number of the long slots is two, two threaded through holes are provided on the corresponding receiving portion, on the middle portion between the two long slots.

[0012] Furthermore, the bottom surface of the cushion block extends to the end surface of the corresponding receiving portion parallel to the length direction of the hook base and close to the corresponding hook.

[0013] Furthermore, the return hook is parallel to the bearing portion.

[0014] Furthermore, the length of the return hook is 20 mm.

[0015] Furthermore, the two threaded through holes are both M6 threaded through holes.

[0016] Furthermore, the diameters of the two first through holes are both 9 mm.

[0017] Compared with the prior art, the hanger hook for spring bar quenching provided by the utility model can reduce the shaking of the spring bar when it is quickly put into liquid for quenching, ensure that the spring bar does not separate from the hanger hook, and the spring bar does not swing when the robot takes the part, so the taking efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a first type of hook base in a hook for spring bar quenching according to an embodiment of the utility model is shown;

[0019] Figure 2 A schematic structural diagram of a second type of hook base in a hook for spring bar quenching according to an embodiment of the utility model is shown;

[0020] Figure 3 A schematic structural diagram of a hanger hook for spring bar quenching according to an embodiment of the utility model is shown;

[0021] Description of main reference numerals:

[0022] 1: hook, 11: bearing part, 12: return hook, 2: hook base, 21: first receiving part, 211: long groove, 212: cushion block, 213: threaded through hole, 22: long strip part, 221: first through hole, 23: second receiving part, 3: fixing screw, 4: pressure plate, 5: elastic strip, 51: front end part. DETAILED DESCRIPTION

[0023] The specific implementation of the utility model is described in detail below. It should be understood that the implementation of the utility model is not limited to the embodiments shown in the accompanying drawings, and the protection scope of the utility model is not limited by the specific implementation. The words "first", "second" and similar words used in the utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "one" or "the" do not indicate quantity restrictions, but indicate that there is at least one. Unless otherwise expressly indicated, throughout the specification and claims, the term "include" or its changes such as "include" or "include" will be understood to include the stated elements or components, without excluding other elements or other components. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] Unless otherwise defined, the meanings of all technical terms and scientific terms used in the present invention are the same as those generally understood by ordinary technicians in the field. In addition, the meanings of the technical terms and scientific terms used in the present invention should be interpreted as having the same meaning as the corresponding terms defined in commonly used technical manuals, and should not be interpreted as having idealized or excessively formal meanings, unless explicitly defined in this utility model.

[0025] Figure 1 The schematic diagram of the structure of the first hook base in the hook for quenching spring bars of the utility model is shown. Figure 1 The hook base 2 includes, along its length direction, a first receiving portion 21, a strip portion 22, and a second receiving portion 23 that form an integral structure, and the first receiving portion 21 and the second receiving portion 23 have the same structure, and the top surface of the first receiving portion 21 is provided with at least one for installing the hook ( Figure 1 Not shown, see Figure 2 ), the length direction of the long groove 211 is parallel to the width direction of the hook base 2, and its two ends extend to the two opposite end faces of the first receiving portion 21 and the hook base 2 in parallel with the length direction, and a cushion block 212 is fixedly arranged in the long groove 211, the width of the long groove 211 is the same as the diameter of the first end of the hook, and the depth of the long groove 211 is equal to the sum of the diameter of the first end of the hook and the height of the cushion block 212. Two threaded through holes 213 are arranged on the top and bottom surfaces of the first receiving portion 21.

[0026] Furthermore, the bottom surface of the cushion block 212 extends to the end surface of the storage portion 21 parallel to the length direction of the hook base 2 and close to the hook.

[0027] Furthermore, two first through holes 221 are arranged on two opposite end surfaces of the long strip portion 22 and parallel to the length direction of the hook base 2, and the two first through holes are symmetrically arranged relative to the two symmetry axes of the long strip portion 21. The two first through holes 221 are used to cooperate with bolts to fix the hanger hook for quenching the spring strip provided by the utility model on the accumulation chain.

[0028] Specifically, the diameters of the two first through holes are both 9 mm.

[0029] Furthermore, the two threaded through holes are both M6 threaded through holes.

[0030] Specifically, when the number of the long slot 211 is one, the two threaded through holes 213 are respectively provided on the corresponding receiving portion and on both sides of the long slot 211 along the length direction of the hook base 2 .

[0031] Figure 2 The schematic diagram of the structure of the second hook base in the hook for quenching spring bars of the utility model is shown. Figure 2 The difference between the second type of hook base and the first type of hook base is that the number of the long grooves 211 on the first receiving portion 21 of the second type of hook base is 2, and the spacing between the two long grooves is adapted to the spacing between the corresponding two hooks to be compatible with elastic bars 5 of different sizes, and two threaded through holes 213 are provided on the first receiving portion 21, located in the middle part between the two long grooves 211.

[0032] Figure 3 The schematic diagram of the structure of the hanger hook for quenching spring bars of the utility model is shown in FIG. Figure 3 The hook comprises: two hooks 1 of the same structure and made of stainless steel, a hook base 2, four fixing screws 3, and two pressing plates 4. In this embodiment, the hook base 2 takes the first type of hook base as an example. The first ends of the two hooks 1 are respectively installed in the long slot 211, and the bearing parts 11 of the two hooks 1 are respectively used to hook the two front end parts 51 of the elastic strip 5. Each pressing plate 4 has two second through holes, and the positions of the two second through holes correspond to the positions of the two threaded through holes 213. The four fixing screws 3 fix the two pressing plates 4 on the first receiving part 21 and the second receiving part 23 respectively through the two second through holes and the two threaded through holes 213. Since the depth of the long slot 211 is equal to the sum of the diameter of the first end of the hook 1 and the height of the pad 212, the lower surface of the pressing plate 4 contacts the top of the first end of the hook 1, that is, the first end of the hook 1 is fixed in the long slot 211 by the pressing plate 4. The second ends of the two hooks 1 are both return hooks 12.

[0033] Specifically, the return hook 12 is parallel to the bearing portion 11 .

[0034] Specifically, the length of the return hook 12 is 20 mm.

[0035] After the spring bar 5 is hot stamped, the manipulator hangs the spring bar 5 on the two hooks 1, and then runs the accumulation chain, and the spring bar 5 quickly enters the liquid for quenching. Because the two hooks 1 are provided with return hooks 13, the swing amplitude of the spring bar 5 when it quickly enters the liquid is small, which can prevent the spring bar 5 from detaching from the hooks 1. When the spring bar 5 is quenched and transported to the pickup point by the accumulation chain, because the spring bar 5 is hung on the two hooks 1, the spring bar is relatively stable and almost does not shake, which is convenient for the manipulator to pick up the parts and improves the efficiency of picking up the parts.

[0036] In summary, the utility model provides a hanger hook for quenching spring bars. By adopting two hooks 1 formed by bending stainless steel and having a return hook 13, the spring bar 5 can be better prevented from shaking when it is quickly put into the liquid, the efficiency of taking out the pieces is improved, and it is not easy to rust and has a long service life. By providing a long groove 211, a cushion block 212, four fixing screws 3, two pressure plates 4 with two second through holes respectively, and a storage portion 21, 23 with two threaded through holes 213, the two hooks 1 are detachably connected to the hook base 2, so that the two hooks 1 are convenient to replace.

[0037] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different options and changes. The scope of protection of the present invention is defined by the claims and their equivalents.

Claims

1. A hook for spring bar quenching, characterized in that: include: A hook base, two hooks of the same structure and bent from stainless steel, four fixing screws, and two pressing plates; in, The hook base includes, along its length direction, a first receiving portion, a long strip portion, and a second receiving portion that form an integral structure, and the first receiving portion and the second receiving portion have the same structure, and at least one long groove is provided on the top surface of any receiving portion, and the length direction of the long groove is parallel to the width direction of the hook base, and the two ends of the long groove extend to two opposite end surfaces of the corresponding receiving portion that are parallel to the length direction of the hook base, respectively, and a pad is fixedly arranged in the long groove, and the width of the long groove is the same as the diameter of the first end of the hook, and the depth of the long groove is equal to the sum of the diameter of the first end of the hook and the height of the pad, and two threaded through holes are penetrated on the top surface and the bottom surface of any receiving portion; The first ends of the two hooks are respectively installed in the corresponding long slots, the bearing parts of the two hooks are respectively used to hook the two front ends of the elastic strip, and the second ends of the two hooks are both return hooks; Each pressing plate is provided with two second through holes, and the positions of the two second through holes correspond to the positions of the two threaded through holes; The four fixing screws are used to fix the two pressing plates on the first receiving portion and the second receiving portion respectively through the two second through holes and the two threaded through holes.

2. The hanger hook for spring bar quenching according to claim 1, characterized in that: Two first through holes are arranged on two opposite end surfaces of the long strip portion which are parallel to the length direction of the hook base.

3. The hanger hook for spring bar quenching according to claim 2, characterized in that: When the number of the long slot is one, the two threaded through holes are respectively arranged on the corresponding receiving portion and on both sides of the long slot along the length direction of the hook base.

4. The hanger hook for spring bar quenching according to claim 2, characterized in that: When the number of the long grooves is 2, the two threaded through holes are arranged on the corresponding receiving portion, on the middle part between the two long grooves.

5. The hanger hook for spring bar quenching according to claim 3 or 4, characterized in that: The bottom surface of the cushion block extends to the end surface of the corresponding receiving portion which is parallel to the length direction of the hook base and close to the corresponding hook.

6. The hanger hook for quenching spring bars according to claim 5, characterized in that: The return hook is parallel to the bearing portion.

7. The hanger hook for spring bar quenching according to claim 6, characterized in that: The length of the return hook is 20 mm.

8. The hanger hook for spring bar quenching according to any one of claims 6 to 7, characterized in that: The two threaded through holes are both M6 threaded through holes.

9. The hanger hook for spring bar quenching according to claim 8, characterized in that: The diameters of the two first through holes are both 9 mm.

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