Oil storage mechanism for riveting gun and riveting gun

Abstract

The oil storage mechanism comprises a lead screw, a lead screw nut and an oil storage shell, the lead screw nut is arranged on the lead screw in a sleeved mode, the oil storage shell is arranged on the peripheral side of the lead screw, an oil storage cavity is formed among the oil storage shell, the lead screw nut and the outer side wall of the lead screw, and lubricating substances are filled in the oil storage cavity; according to the scheme, the oil storage cavity formed among the oil storage shell, the lead screw nut and the outer side wall of the lead screw is used for storing lubricating substances to provide a lubricating effect on movement of the lead screw nut on the lead screw, so that abrasion is effectively reduced in the long-time operation process of the lead screw, temperature rise caused by friction is reduced, and the service life of the lead screw is prolonged. Therefore, the service life of the lead screw nut and the lead screw is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of rivet guns, and particularly relates to an oil storage mechanism for a rivet gun and a rivet gun. Background Art

[0002] In the reciprocating structure of the screw nut commonly used in riveting tools, during the reciprocating motion under long-term load work, the grease in the screw nut will gradually fail. The friction between the internal moving metal parts in the screw nut after losing lubrication will increase, and the metal parts will be worn and jammed after long-term work, and cannot continue to work. Therefore, it is urgent to provide an oil storage mechanism for a rivet gun and a rivet gun to solve the above problems. Summary of the Invention

[0003] For this reason, it is necessary to provide an oil storage mechanism to improve the lubrication aging of the moving parts in the screw nut and improve the service life of the screw nut.

[0004] To achieve the above object, the inventor provides an oil storage mechanism for a rivet gun, including: a lead screw, a lead screw nut and an oil storage housing. The lead screw nut is sleeved on the lead screw, and an oil storage housing is arranged on the circumferential side of the lead screw. An oil storage cavity is formed between the oil storage housing, the lead screw nut and the outer wall of the lead screw, and a lubricating substance is filled in the oil storage cavity.

[0005] As a preferred structure of the utility model, an oil filling hole is arranged on the oil storage housing, and the oil filling hole is communicated with the oil storage cavity.

[0006] As a preferred structure of the utility model, a sealing plug or a sealing screw is arranged at the oil filling hole.

[0007] As a preferred structure of the utility model, it further includes a connecting rod. The front end of the lead screw is connected with the connecting rod, and a sealing component is arranged between the outer wall of the connecting rod and the oil storage housing.

[0008] As a preferred structure of the utility model, the sealing component is sleeved on the circumferential side wall of the connecting rod near the lead screw end.

[0009] As a preferred structure of the utility model, the sealing component includes a skeleton oil seal, and the skeleton oil seal is sleeved between the outer wall of the connecting rod and the oil storage housing.

[0010] As a preferred structure of the utility model, the sealing component further includes a circlip. A clamping groove is formed on the inner wall of the oil storage housing on the side of the skeleton oil seal away from the oil storage cavity, and the circlip is clamped in the clamping groove.

[0011] As a preferred structure of the utility model, the axial length of the connecting rod is greater than the axial length of the oil storage cavity.

[0012] To achieve the above object, the inventor also provides a rivet gun, which includes a transmission mechanism, a clamping jaw and a clamping jaw sleeve, and further includes: the oil storage mechanism for the rivet gun described in any one of the above invention contents. The transmission mechanism is in transmission connection with a lead screw nut. The clamping jaw is arranged at the front end of the lead screw. The clamping jaw sleeve is sleeved on the periphery of the clamping jaw, and the clamping jaw sleeve is connected to the lead screw.

[0013] As a preferred structure of the present utility model, the clamping jaw sleeve is connected to the lead screw through a connecting rod.

[0014] As a preferred structure of the present utility model, the transmission component includes a reducer. An oil injection hole is provided on the outer shell of the reducer, and the oil injection hole is communicated with the inside of the reducer.

[0015] As a preferred structure of the present utility model, a sealing plug or a sealing screw is provided at the oil injection hole.

[0016] Different from the prior art, the beneficial effects achieved by the above technical solutions are as follows: In this solution, an oil storage cavity formed between the oil storage outer shell, the lead screw nut and the outer side wall of the lead screw is used to store lubricating substances such as lubricating oil and lubricating grease to provide lubrication for the movement of the lead screw nut on the lead screw, so as to effectively reduce wear during long-term operation and reduce the temperature rise caused by friction, thereby prolonging the service life of the lead screw nut and the lead screw; In addition, the sealing property of the oil storage mechanism also facilitates dust prevention for the reciprocating mechanism, and can effectively block metal debris from riveting broken nails and external dust in the working condition from entering, providing another aspect of effectiveness for the service life of the riveting tool and the risk of potential foreign objects entering. Description of the Drawings

[0017] Figure 1 It is a cross-sectional view of the oil storage mechanism for the rivet gun described in the specific embodiment;

[0018] Figure 2 It is a partial structural schematic diagram of the oil storage mechanism for the rivet gun described in the specific embodiment;

[0019] Figure 3 It is a structural schematic diagram of the connection between the lead screw and the connecting rod described in the specific embodiment;

[0020] Figure 4 It is a structural schematic diagram of the sealing component described in the specific embodiment;

[0021] Figure 5 It is a schematic diagram of the oil filling hole described in the specific embodiment;

[0022] Figure 6 It is a cross-sectional view of the rivet gun described in the specific embodiment;

[0023] Figure 7 It is a schematic diagram of the internal structure of the rivet gun described in the specific embodiment;

[0024] Figure 8 It is a cross-sectional view of the speed reducer described in the specific implementation manner.

[0025] Explanation of reference numerals:

[0026] 101, lead screw; 102, lead screw nut; 103, oil storage housing; 104, oil storage cavity; 105, lubricating substance; 106, oil filling hole; 107, sealing screw; 108, connecting rod; 109, sealing assembly; 1091, skeleton oil seal; 1092, snap ring; 1093, card slot; 201, rivet gun housing; 202, driving mechanism; 203, transmission mechanism; 204, jaw; 205, jaw sleeve; 301, speed reducer; 302, oil injection hole. Specific implementation manner

[0027] In order to elaborate in detail the technical content, structural features, achieved objectives and effects of the technical solution, the following is described in detail in conjunction with specific embodiments and with reference to the accompanying drawings.

[0028] As shown in Figure 1, Figure 2 and Figure 3 As shown, this embodiment provides an oil storage mechanism for a rivet gun, including: a lead screw 101, a lead screw nut 102, and an oil storage housing 103. The lead screw nut 102 is sleeved on the lead screw 101. An oil storage housing is provided on the circumferential side of the lead screw 101. An oil storage cavity 104 is formed between the oil storage housing 103, the outer side wall of the lead screw nut 102, and the lead screw 101. The oil storage cavity is filled with a lubricating substance 105. In this embodiment, the oil storage cavity 104 formed between the oil storage housing, the lead screw nut, and the lead screw can be used to fill the lubricating substance 105. The lubricating substance 105 can be lubricating oil, lubricating grease, or other material substances that can provide lubrication for metals. By providing the oil storage cavity and filling the lubricating substance, during the reciprocating movement of the lead screw nut on the lead screw, wear can be reduced, and the heat generated by friction can be reduced, thereby extending the service life of the lead screw nut and the lead screw. In addition, in this embodiment, the sealing characteristics formed by the oil storage cavity and the lubricating substance also facilitate dust prevention for the reciprocating mechanism, can effectively block metal debris from riveting broken nails and external dust in the working condition from entering, and provide guarantee for the service life of the riveting tool and the risk of foreign objects entering.

[0029] As Figure 5 shown, in some embodiments, in order to facilitate the replenishment of the lubricating substance in the oil storage cavity, in this embodiment, by providing an oil filling hole 106 on the oil storage housing, the oil filling hole 106 is communicated with the oil storage cavity 104, so that the oil storage cavity 104 can be replenished with lubricating grease and other lubricating substances through the oil filling hole 106. A sealing plug or a sealing screw 107 can be provided on the oil filling hole to seal the oil filling hole and prevent the lubricating substance from leaking out.

[0030] AsFigure 1 and Figure 4 As shown in Figure 4 , in this embodiment, it further includes a connecting rod 108. The front end of the lead screw 101 is connected to the connecting rod 108, and a sealing assembly 109 is provided between the outer wall of the connecting rod 108 and the oil storage housing. In this embodiment, by providing the sealing assembly 109 to seal one end of the oil storage cavity away from the lead screw nut, the sealing performance of the sealed cavity is further improved, so that the lubricating substance cannot leak, and the entry of metal debris and external dust is also further avoided. In this embodiment, the sealing assembly 109 is sleeved on the circumferential side wall of the connecting rod 108 near the lead screw end of the connecting rod 108. The sealing assembly 109 includes a skeleton oil seal 1091, and the skeleton oil seal 1091 is sleeved between the outer wall of the connecting rod and the oil storage housing. The sealing assembly further includes a circlip 1092. A clamping groove 1093 is formed on the inner wall of the oil storage housing on the side of the skeleton oil seal away from the oil storage cavity, and the circlip 1092 is clamped in the clamping groove 1093.

[0031] As Figure 1 shown in Figure 1 , in the above embodiment, both the lead screw 101 and the connecting rod 108 are coaxial and hollow structures provided in communication; the axial length of the connecting rod is greater than the axial length of the lead screw between the front end of the lead screw nut and the connecting rod. When pulling the rivet, the lead screw nut drives the lead screw and the connecting rod to move backward. At this time, the position of the lubricating substance in the sealed cavity remains unchanged, and the connecting rod is driven to gradually move to the lubricating cavity, so that the lubricating substance gradually wraps around the connecting rod. The length of the connecting rod can provide a stroke for the running length of the lead screw, avoiding the leakage of the lubricating substance in the oil storage cavity due to the long stroke of the lead screw.

[0032] As Figure 6 and Figure 7As shown in the figure, this embodiment provides a rivet gun, which includes a transmission mechanism 203, a jaw 204 and a jaw sleeve 205, and further includes: the oil storage mechanism for the rivet gun described in any one of the above embodiments. The transmission mechanism 203 is in transmission connection with the lead screw nut 102. The jaw 204 is arranged at the front end of the lead screw 101. The jaw sleeve 205 is sleeved on the periphery of the jaw 204, and the jaw sleeve 205 is connected to the lead screw 101. In this embodiment, the jaw sleeve 205 is connected to the lead screw 101 through a connecting rod 108, that is, one end of the connecting rod 108 is connected to the jaw sleeve 205, and the other end is connected to the lead screw 101. During the use of the rivet gun in this embodiment, the external drive mechanism 202 or the built-in drive mechanism 202 drives the transmission mechanism 203. The transmission mechanism 203 drives the lead screw nut 102 to rotate, driving the lead screw 101, the connecting rod 108 and the jaw sleeve 205 to move backward, so that the jaw 204 clamps the rivet for riveting operation. After riveting, the drive mechanism rotates back, causing the lead screw, the connecting rod and the jaw sleeve to reset. The oil storage mechanism in this rivet gun provides lubrication for the rotation of the lead screw nut, reduces wear, reduces the temperature generated by friction, and effectively extends the service life of the rivet gun. In this embodiment, the rivet gun further includes a rivet gun housing. The oil storage housing can be a part of the rivet gun housing or arranged inside the rivet gun housing. When it is arranged inside the rivet gun housing, the oil filling hole of the oil storage housing corresponds to the oil filling hole provided on the rivet gun housing, so as to facilitate the filling of lubricating substances.

[0033] In the above embodiment, the transmission assembly includes a reducer. As Figure 8 shown, an oil filling hole is provided on the reducer housing, and lubricating substances such as lubricating oil are replenished to the transmission gears in the reducer through the oil filling hole, so as to keep the reducer operating in a lubricated environment, improve the service life of the reducer and reduce noise, etc. In order to prevent the lubricating substance from leaking out of the oil filling hole, in this embodiment, a sealing screw can be provided at the oil filling hole for sealing.

[0034] It should be noted that although the above embodiments have been described in this article, the patent protection scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, any changes and modifications made to the embodiments described in this article, or equivalent structural or equivalent process transformations made using the content of the specification and drawings of the present invention, directly or indirectly applying the above technical solutions to other related technical fields, are all included in the patent protection scope of the present invention.

Claims

1. An oil storage mechanism for a rivet gun, characterized in that: include: A lead screw, a lead screw nut and an oil storage shell, wherein the lead screw nut is sleeved on the lead screw, an oil storage shell is provided on the periphery of the lead screw, an oil storage cavity is formed between the oil storage shell and the lead screw nut and the outer side wall of the lead screw, and the oil storage cavity is filled with lubricating material.

2. The oil storage mechanism for a rivet gun according to claim 1, characterized in that: The oil storage shell is provided with a refueling hole, and the refueling hole is communicated with the oil storage cavity.

3. The oil storage mechanism for a rivet gun according to claim 2, characterized in that: A sealing plug or a sealing screw is provided at the refueling hole.

4. The oil storage mechanism for a rivet gun according to claim 1, characterized in that: It also includes a connecting rod, the front end of the lead screw is connected to the connecting rod, and a sealing component is provided between the outer wall of the connecting rod and the oil storage shell.

5. The oil storage mechanism for a rivet gun according to claim 4, characterized in that: The sealing assembly is sleeved on a peripheral side wall of the connecting rod close to one end of the lead screw.

6. The oil storage mechanism for a rivet gun according to claim 4, characterized in that: The sealing assembly comprises a skeleton oil seal, and the skeleton oil seal is sleeved between the outer wall of the connecting rod and the oil storage shell.

7. The oil storage mechanism for a rivet gun according to claim 6, characterized in that: The sealing assembly also includes a retaining spring. A retaining groove is provided on the inner wall of the oil storage shell on the side of the skeleton oil seal away from the oil storage cavity, and the retaining spring is retained in the retaining groove.

8. The oil storage mechanism for a rivet gun according to claim 4, characterized in that: The axial length of the connecting rod is greater than the axial length of the oil storage cavity.

9. A rivet gun, comprising a transmission mechanism, a clamping jaw and a clamping jaw sleeve, characterized in that: Also includes: The oil storage mechanism for a rivet gun described in any one of claims 1 to 8 above, wherein the transmission mechanism is transmission-connected to the lead screw nut, the clamping jaw is disposed at the front end of the lead screw, the clamping jaw sleeve is sleeved on the periphery of the clamping jaw, and the clamping jaw sleeve is connected to the lead screw.

10. The rivet gun according to claim 9, characterized in that: The clamping jaw sleeve is connected with the lead screw through a connecting rod.

11. The rivet gun according to claim 9, characterized in that: The transmission mechanism comprises a reducer, and an oil filling hole is arranged on the reducer housing, and the oil filling hole is communicated with the inside of the reducer.

12. The rivet gun according to claim 11, characterized in that: A sealing plug or a sealing screw is provided at the oil filling hole.

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