Nut fixing jig

Abstract

The utility model discloses a nut fixing jig which comprises a supporting frame, a plurality of limiting barrels are vertically arranged on the supporting frame, a pushing mechanism is arranged on the supporting frame, each limiting barrel comprises a limiting pipe and a limiting sleeve, the limiting pipes penetrate through the supporting frame and are fixedly connected with the supporting frame, and the limiting sleeves are fixedly connected with the supporting frame. The limiting sleeve is detachably connected to the bottom of the limiting pipe, the inner side wall of the limiting sleeve is provided with a limiting groove allowing a nut to be tightly clamped in, and the pushing mechanism is used for pushing the nut out of the limiting groove. According to the nut fixing jig, the detachable limiting sleeve is arranged, a worker can replace the limiting sleeve matched with the nut according to the type of the nut, the use adaptability of the nut fixing jig is improved, resources can be saved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of fixing tools, and in particular to a nut fixing fixture. Background Technology

[0002] Currently, relay housings or power supply box housings are typically equipped with nuts for connecting external components. During injection molding of components such as relay housings or power supply box housings, a nut-fixing fixture is used to place the nut on the injection molding machine. When the injection molding machine processes the relay housing or power supply box housing, the nut is automatically fixed to the housing.

[0003] Nut-fixing fixtures in related technologies typically include a support frame with multiple limiting cylinders fixedly connected to it, allowing the nuts to be tightly engaged within the limiting cylinders. Simultaneously, the support frame is equipped with a pushing mechanism used to push the multiple nuts out of their respective limiting cylinders.

[0004] However, the limit tube can only be used with specific types of nuts. If the relay housing or power box housing is updated and a different type of nut needs to be replaced somewhere, the nut fixing fixture needs to be remade, which wastes resources and needs to be improved. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a nut fixing fixture that can improve the adaptability of nut fixing fixtures, save resources, and reduce production costs.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a nut fixing fixture, including a support frame, a plurality of limiting cylinders are vertically arranged on the support frame, and a pushing mechanism is provided on the support frame. The limiting cylinder includes a limiting tube and a limiting sleeve. The limiting tube passes through the support frame and is fixedly connected to the support frame. The limiting sleeve is detachably connected to the bottom of the limiting tube. The inner side wall of the limiting sleeve is provided with a limiting groove for the nut to be tightly inserted, and the pushing mechanism is used to push the nut out of the limiting groove.

[0007] In a preferred embodiment, the present invention can be further configured such that: a limiting sleeve is coaxially fixedly connected to the top of the limiting sleeve, and the limiting sleeve is threaded onto the bottom end of the limiting tube.

[0008] In a preferred embodiment, the present invention can be further configured such that: each of the limiting grooves is vertically slidably connected with a push plate, the push mechanism is used to push the multiple push plates to move downward synchronously, so that the multiple push plates push the nuts out of the corresponding limiting grooves respectively, and each limiting sleeve is provided with a support spring, the support spring is used to pull the corresponding push plate to move upward.

[0009] In a preferred embodiment, the present invention can be further configured such that the pushing mechanism includes:

[0010] A control frame is positioned above the support frame;

[0011] There are two guide holes, which are located on the control frame;

[0012] Two guide rods are vertically fixed to the support frame, and the two guide rods are vertically slidably engaged with the corresponding guide holes.

[0013] Multiple push rods are vertically fixed to the bottom of the control frame. The multiple push rods are slidably inserted into the corresponding limiting tubes, and the push rods are used to push the corresponding push plates downward.

[0014] A return spring is disposed between the control frame and the support frame and is used to push the control frame to move upward relative to the support frame.

[0015] In a preferred embodiment, the present invention can be further configured such that: a locking rod is coaxially fixedly connected to the bottom end of each of the push rods, the outer diameter of the locking rod is smaller than the outer diameter of the corresponding push rod, each of the push plates is provided with a through mounting hole for the corresponding locking rod to pass through, and a locking nut is threaded onto the bottom end of each locking rod, and the locking nut is used to press and fix the push plate to the bottom of the corresponding push rod.

[0016] In a preferred embodiment, the present invention can be further configured such that: the lower surface of the push plate is provided with a countersunk groove communicating with the mounting hole, and the locking nut can be fully inserted into the countersunk groove.

[0017] In a preferred embodiment, the present invention can be further configured such that a limiting ring is fixedly sleeved on the top end of each guide rod, the outer diameter of the limiting ring being larger than the inner diameter of the corresponding guide hole, so as to limit the maximum travel of the control frame relative to the support frame.

[0018] In a preferred embodiment, the present invention can be further configured such that a lifting handle is fixedly connected to the control frame.

[0019] In summary, this utility model has the following beneficial effects:

[0020] By setting up detachable limit sleeves, workers can replace the limit sleeves that match the nut model, improving the adaptability of the nut fixing fixture. Once the nut on the relay housing or power box housing is replaced, workers only need to replace the limit sleeve at the corresponding position, without having to remake the nut fixing fixture, which saves resources and reduces production costs. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of an embodiment;

[0022] Figure 2 This is a cross-sectional view of an embodiment;

[0023] Figure 3 yes Figure 2 An enlarged schematic diagram of region A in the middle.

[0024] Reference numerals in the attached drawings: 1. Support frame; 2. Limiting cylinder; 21. Limiting tube; 22. Limiting sleeve; 23. Limiting groove; 24. Limiting sleeve; 3. Pushing mechanism; 31. Control frame; 32. Guide hole; 33. Guide rod; 34. Pushing rod; 35. Return spring; 4. Pushing plate; 5. Supporting spring; 6. Locking rod; 7. Mounting hole; 8. Locking nut; 9. Countersunk groove; 10. Limiting ring; 11. Lifting handle. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Reference Figure 1 , Figure 2 A nut-fixing fixture includes a support frame 1, on which multiple limiting cylinders 2 are vertically arranged, and a pushing mechanism 3 is provided. Each limiting cylinder 2 includes a vertically arranged limiting tube 21 and a limiting sleeve 22. The limiting tube 21 passes through the support frame 1 and is fixedly connected to it. The limiting sleeve 22 is detachably connected to the bottom of the limiting tube 21. The inner wall of the limiting sleeve 22 is provided with a limiting groove 23 for the nut to be tightly engaged, and the pushing mechanism 3 is used to push the nut out of the limiting groove 23.

[0027] By incorporating a detachable limiting sleeve 22, workers can replace the limiting sleeve 22 with a matching one according to the nut model, improving the adaptability of the nut fixing fixture. Once a nut on the relay housing or power box housing is replaced, workers only need to replace the limiting sleeve 22 at the corresponding location, eliminating the need to remake the nut fixing fixture, thus saving resources and reducing production costs.

[0028] Reference Figure 2 , Figure 3 The top of the limiting sleeve 22 is coaxially fixedly connected to the limiting sleeve 24, which is threaded onto the bottom end of the limiting tube 21 to achieve quick locking and unlocking of the limiting sleeve 22, so as to facilitate the replacement operation of the limiting sleeve 22 by the staff and thus improve the work efficiency.

[0029] Reference Figure 2 , Figure 3 Each limiting groove 23 has a vertically sliding push plate 4. The pushing mechanism 3 is used to push multiple push plates 4 to move downward synchronously, so that the multiple push plates 4 push the nuts out of the corresponding limiting grooves 23. At the same time, each limiting sleeve 22 is provided with a support spring 5. One end of the support spring 5 is fixedly connected to the upper surface of the push plate 4, and the other end is fixedly connected to the inner wall of the top side of the limiting sleeve 22. The support spring 5 is used to pull the corresponding push plate 4 upward to realize the smooth reset of the push plate 4.

[0030] Reference Figure 1 , Figure 2 The jacking mechanism 3 includes a control frame 31 disposed above the support frame 1. Guide holes 32 are provided on both sides of the control frame 31. Guide rods 33 are vertically fixedly connected to both sides of the support frame 1, and the two guide rods 33 are vertically slidingly engaged with the corresponding guide holes 32 so that the control frame 31 can move vertically relative to the support frame 1.

[0031] Reference Figure 2 , Figure 3 Multiple push rods 34 are vertically fixedly connected to the bottom of the control frame 31. The multiple push rods 34 are correspondingly set with multiple limit tubes 21. The multiple push rods 34 are slidably inserted into the corresponding limit tubes 21, and the push rods 34 are used to push the corresponding push plates 4 downward.

[0032] Reference Figure 2 , Figure 3 A reset spring 35 is provided between the control frame 31 and the support frame 1. One end of the reset spring 35 is fixedly connected to the support frame 1 and the other end is fixedly connected to the control frame 31. The reset spring 35 is used to push the control frame 31 to move upward relative to the support frame 1 so as to reset the control frame 31 and other components.

[0033] Insert the nuts into their respective limiting grooves 23, then place the support frame 1 in the corresponding position on the mold. Press the control frame 31 to drive multiple push rods 34 to move downwards synchronously. At this time, the multiple push rods 34 push the corresponding push plates 4 downwards, so that the push plates 4 push the nuts out of their respective limiting grooves 23. After releasing the control frame 31, the control frame 31 drives the multiple push rods 34 to reset under the action of the return spring 35, and the push plates 4 reset under the action of the corresponding support springs 5.

[0034] Reference Figure 2 , Figure 3 Each push rod 34 has a locking rod 6 coaxially fixedly connected to its bottom end. The outer diameter of the locking rod 6 is smaller than the outer diameter of the corresponding push rod 34, and each push plate 4 has a through mounting hole 7 for the corresponding locking rod 6 to pass through. Each locking rod 6 has a locking nut 8 threaded onto its bottom end. The locking nut 8 is used to press and fix the push plate 4 to the bottom of the corresponding push rod 34, so that the push rod 34 can be fixedly connected to the corresponding push plate 4, ensuring that the push rod 34 and the push plate 4 can move synchronously, so as to ensure that the nut is pushed out smoothly.

[0035] Reference Figure 2 , Figure 3 The lower surface of the push plate 4 is provided with a countersunk groove 9 that communicates with the mounting hole 7, and the locking nut 8 can be fully inserted into the countersunk groove 9 to avoid interference between the locking screw and the nut, ensuring that the lower surface of the push plate 4 contacts the nut, thereby ensuring that the nut is pushed out smoothly.

[0036] Reference Figure 1 , Figure 2 Each guide rod 33 has a limiting ring 10 fixedly fitted at its top end. The outer diameter of the limiting ring 10 is larger than the inner diameter of the corresponding guide hole 32, so as to limit the maximum travel of the control frame 31 relative to the support frame 1 and prevent the guide rod 33 from slipping out of the guide hole 32. At the same time, a lifting handle 11 is fixedly connected to the control frame 31 to facilitate the operation of the operator by holding the nut fixing fixture, thereby improving the ease of use.

[0037] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.

Claims

1. A nut fixing fixture, comprising a support frame (1), wherein a plurality of limiting cylinders (2) are vertically arranged on the support frame (1), and a pushing mechanism (3) is provided on the support frame (1), characterized in that: The limiting cylinder (2) includes a limiting tube (21) and a limiting sleeve (22). The limiting tube (21) passes through the support frame (1) and is fixedly connected to the support frame (1). The limiting sleeve (22) is detachably connected to the bottom of the limiting tube (21). The inner side wall of the limiting sleeve (22) is provided with a limiting groove (23) for the nut to be tightly inserted. The pushing mechanism (3) is used to push the nut out of the limiting groove (23).

2. The nut fixing fixture according to claim 1, characterized in that: The top of the limiting sleeve (22) is coaxially fixedly connected to the limiting sleeve (24), and the limiting sleeve (24) is threaded onto the bottom end of the limiting tube (21).

3. The nut fixing fixture according to claim 1, characterized in that: Each of the limiting grooves (23) is vertically slidably connected to a push plate (4). The push mechanism (3) is used to push multiple push plates (4) to move downward synchronously, so that multiple push plates (4) push the nuts out of the corresponding limiting grooves (23). Each limiting sleeve (22) is provided with a support spring (5), which is used to pull the corresponding push plate (4) upward.

4. A nut fixing fixture according to claim 3, characterized in that: The pushing mechanism (3) includes: A control frame (31) is disposed above the support frame (1); Two guide holes (32) are provided on the control frame (31); Two guide rods (33) are vertically fixed on the support frame (1), and the two guide rods (33) are vertically slidingly engaged with the corresponding guide holes (32); Multiple push rods (34) are vertically fixed to the bottom of the control frame (31). The multiple push rods (34) are slidably inserted into the corresponding limiting tubes (21), and the push rods (34) are used to push the corresponding push plates (4) downward. A reset spring (35) is disposed between the control frame (31) and the support frame (1) and is used to push the control frame (31) to move upward relative to the support frame (1).

5. A nut fixing fixture according to claim 4, characterized in that: Each of the push rods (34) has a locking rod (6) coaxially fixedly connected to its bottom end. The outer diameter of the locking rod (6) is smaller than the outer diameter of the corresponding push rod (34). Each push plate (4) has a mounting hole (7) through which the corresponding locking rod (6) passes. Each locking rod (6) has a locking nut (8) threaded onto its bottom end. The locking nut (8) is used to press and fix the push plate (4) to the bottom of the corresponding push rod (34).

6. A nut fixing fixture according to claim 5, characterized in that: The lower surface of the push plate (4) is provided with a countersunk groove (9) that communicates with the mounting hole (7), and the locking nut (8) can be fully inserted into the countersunk groove (9).

7. A nut fixing fixture according to claim 4, characterized in that: Each of the guide rods (33) has a limiting ring (10) fixedly sleeved at its top end. The outer diameter of the limiting ring (10) is larger than the inner diameter of the corresponding guide hole (32) to limit the maximum travel of the control frame (31) relative to the support frame (1).

8. A nut fixing fixture according to claim 4, characterized in that: A lifting handle (11) is fixedly connected to the control frame (31).

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