Fixator for fastener electroplating
By using a threaded connection between a transverse fixing rod and an elastic inner swelling collet in the fastener electroplating fixture, combined with the design of the inner stretching conical body and the stop shoulder, the fixing process in the prior art is complicated and costly. The problem has achieved flexible fixation and improvement of production efficiency for products of different specifications.
Patent Information
- Application Number
- CN202420991416.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2024-12-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing fastener plating fixtures are complicated to disassemble and assemble during the fixing process, and cannot adapt to different specifications of products, resulting in low production efficiency and high plating costs.
A fastener electroplating fixture is designed, using a threaded connection between a transverse fixing rod and an elastic inner chuck. Through the coordination of the inner stretching conical body and the stop shoulder, flexible fixing of products of different specifications is achieved. Avoid deformation caused by excessive thread connection.
It achieves good fixation of products of different specifications, reduces the cost increase caused by fixture problems, improves production efficiency, and prevents deformation of elastic inner chuck.
Smart Images
Figure CN222182522U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of internal expansion, in particular to a fastener fixer for electroplating. Background Art
[0002] Fasteners such as expansion sleeves require electroplating. Electroplating is a material surface treatment process that uses the chemical reaction principle of electrolysis to lay a layer of metal on the surface of a conductor. Common ways to achieve electroplating include rack plating, spray plating, brush plating, etc. During electroplating, the product usually needs to be fixed to ensure the stability of the electroplating process. The existing electroplating fixtures and product fixing process are cumbersome to disassemble and assemble and cannot be properly adjusted according to the product. In order to achieve good installation of products of different specifications, it is necessary to replace fixtures of different sizes to achieve fixation, which not only reduces production efficiency but also increases the cost of product plating.
[0003] For example, Chinese patent number [CN201720898087.8], an internal expansion clamp, comprising: a base, one side of which is provided with a core shaft; a conical sleeve having a conical outer surface, and the outer diameter of the conical sleeve gradually increases in a direction away from the base; the center hole of the conical sleeve is sleeved on the core shaft so that the conical sleeve can slide along the core shaft; a fixed sleeve, which is sleeved outside the conical sleeve and fixed relative to the base; a plurality of strip holes are arranged on the fixed sleeve; a plurality of sliders are disposed in each of the strip holes; a first side surface of each of the sliders abuts against the conical outer surface of the conical sleeve, and a second side surface of each of the sliders opposite to the first side surface is suitable for abutting against the clamping hole of the workpiece to be clamped; a tightening device is arranged at the end of the conical sleeve away from the base, and the tightening device is suitable for applying force to the conical sleeve to move the conical sleeve toward the base, so that each of the sliders can move radially outward to clamp the workpiece to be clamped. The internal expansion clamp of this solution has accurate centering, easy assembly and disassembly, simple structure and low production cost.
[0004] Although the above solution has the above advantages, it does not solve the above technical problems. Utility Model Content
[0005] The purpose of the utility model is to provide a fastener electroplating fixture that solves the above-mentioned technical problems in view of the above-mentioned problems in the prior art.
[0006] The purpose of the utility model can be achieved through the following technical solutions:
[0007] The fastener electroplating fixture comprises a transverse fixing rod, at one end of which a conical elastic inner expansion chuck is provided, at least a portion of the transverse fixing rod is inserted into the elastic inner expansion chuck and the elastic inner expansion chuck and the transverse fixing rod are threadedly connected, and an inner expansion cone body inserted into the elastic inner expansion chuck is provided on the transverse fixing rod, and the axial length of the inner expansion cone body is shorter than the axial length of the elastic inner expansion chuck.
[0008] In the above-mentioned fastener electroplating fixture, the inner cone taper of the elastic inner expansion chuck is consistent with the outer cone taper of the inner expansion cone.
[0009] In the above-mentioned fastener electroplating fixture, one end of the transverse fixing rod extending into the elastic inner expansion chuck is also provided with a stop shoulder, and the stop shoulder is located at the small diameter end of the inner expansion cone.
[0010] In the above-mentioned fastener electroplating fixture, the stop shoulder is of cylindrical structure, and the outer diameter of the stop shoulder is equal to the diameter of the small diameter end of the inner expanded cone.
[0011] In the above-mentioned fastener electroplating fixture, the small diameter end of the inner expanded cone is connected to the stop shoulder.
[0012] In the above-mentioned fastener electroplating fixture, an annular circular plate is provided at the small diameter end of the elastic inner expansion chuck, and the transverse fixing rod is threadedly connected to the annular circular plate.
[0013] In the above-mentioned fastener electroplating fixture, the inner diameter of the annular circular plate is smaller than the outer diameter of the stop shoulder.
[0014] In the above-mentioned fastener electroplating fixture, the inner wall of the elastic inner expansion chuck is provided with a plurality of circles of limiting inner convex ribs which are sequentially spaced and distributed along the axial direction of the elastic inner expansion chuck.
[0015] In the above-mentioned fastener electroplating fixture, the inner wall of the annular circular plate is provided with an internal thread, and the end of the horizontal fixing rod extending into the elastic internal expansion clamp is provided with an external thread, and the thread length of the external thread is longer than the thread length of the internal thread.
[0016] In the above-mentioned fastener electroplating fixture, the elastic inner expansion chuck is any one of a metal elastic inner expansion chuck and a plastic elastic inner expansion chuck.
[0017] Compared with the prior art, the fastener electroplating fixture has the following beneficial effects:
[0018] To achieve good fixation of products of different specifications and avoid cost increase due to fixture problems, the transverse fixing rod and the annular circular plate threaded connection of the elastic inner expansion chuck are adjusted to drive the inner expansion cone on the transverse fixing rod to move toward the inner wall of the elastic inner expansion chuck, thereby supporting the elastic inner expansion chuck outward. The axial length of the inner expansion cone is shorter than the axial length of the elastic inner expansion chuck to achieve good connection between the inner expansion cone and the elastic inner expansion chuck. At the same time, a stop shoulder is provided at one end of the transverse fixing rod, and the outer diameter of the stop shoulder is larger than the inner diameter of the annular circular plate to avoid deformation of the elastic inner expansion chuck caused by over-tightening of the threaded connection. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the structure of a fastener electroplating fixture provided by the utility model.
[0020] Figure 2 for Figure 1 Schematic diagram of the local structure.
[0021] Figure 3 for Figure 2 Another state structure diagram of .
[0022] Figure 4 for Figure 1 Another partial structural diagram.
[0023] Figure 5 The utility model is a schematic diagram of the exploded structure of the fastener electroplating fixer.
[0024] In the figure, there is a horizontally placed fixing rod 1, a conical body 11, a stop shoulder 12, an elastic inner expansion clamp 2, an annular circular plate 21, a limiting inner convex rib 22, and a notch 3. DETAILED DESCRIPTION
[0025] The following are specific embodiments of the utility model and the accompanying drawings to further describe the technical solution of the utility model, but the utility model is not limited to these embodiments.
[0026] Embodiment 1
[0027] like Figures 1 to 5As shown, the fastener electroplating fixture comprises a transverse fixing rod 1, and a conical elastic inner expansion chuck 2 is provided at one end of the transverse fixing rod 1, at least a part of the transverse fixing rod 1 is inserted into the elastic inner expansion chuck 2, and the elastic inner expansion chuck 2 and the transverse fixing rod 1 are threadedly connected, and an inner expansion cone 11 inserted into the elastic inner expansion chuck 2 is provided on the transverse fixing rod 1, and the axial length of the inner expansion cone 11 is shorter than the axial length of the elastic inner expansion chuck 2. By adjusting the thread between the elastic inner expansion chuck 2 and the elastic inner expansion chuck 2, the inner expansion cone 11 is driven to move toward the inner wall of the elastic inner expansion chuck 2 so that the elastic inner expansion chuck 2 is supported outwardly, so as to adapt to the fixing of products of different specifications. More specifically, in this embodiment, a plurality of notches 3 are distributed circumferentially on the elastic inner expansion chuck 2 to separate the elastic inner expansion chuck 2, and the notches 3 are used to increase the elastic force of the elastic inner expansion chuck 2 to avoid the breakage of the elastic inner expansion chuck 2 during the external support process.
[0028] In order to realize good external support of the inner expansion cone 11 to the elastic inner expansion chuck 2, as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the inner cone taper of the elastic inner expansion chuck 2 is consistent with the outer cone taper of the inner expansion cone 11.
[0029] In order to prevent the elastic inner expansion chuck 2 from being deformed due to the excessively deep thread connection of the inner expansion cone 11, in particular, in this embodiment, a stop shoulder 12 is further provided at one end of the transverse fixing rod 1 extending into the elastic inner expansion chuck 2, and the stop shoulder 12 is located at the small diameter end of the inner expansion cone 11. The stop shoulder 12 forms a limit stop with the elastic inner expansion chuck 2 to prevent the elastic inner expansion chuck 2 and the transverse fixing rod 1 from being too tightly threaded.
[0030] In order to ensure the stability of the stop shoulder 12 and the inner expansion cone 11 during the stop process, Figure 1 , Figure 4 and Figure 5 As shown, the stop shoulder 12 is cylindrical, and the outer diameter of the stop shoulder 12 is equal to the diameter of the small diameter end of the inner expanded cone 11. Specifically, the small diameter end of the inner expanded cone 11 is connected to the stop shoulder 12 in this embodiment.
[0031] To achieve the connection between the horizontal fixing rod 1 and the elastic inner expansion clamp 2, as Figures 1 to 5 As shown, an annular circular plate 21 is provided at the small diameter end of the elastic inner expansion chuck 2, and the transverse fixing rod 1 and the annular circular plate 21 are threadedly connected.
[0032] To prevent the stop shoulder 12 from extending into the inner diameter of the annular plate 21 and causing the threaded connection to be too tight, Figures 2 to 5 As shown, the inner diameter of the annular circular plate 21 is smaller than the outer diameter of the stop shoulder 12 .
[0033] In order to realize the limit adjustment of the inner expansion cone 11 in the inner wall of the elastic inner expansion chuck 2, as Figure 1 , Figure 2 and Figure 5 As shown, the inner wall of the elastic inner expansion clamp 2 is provided with a plurality of circles of inner limiting convex ribs 22 which are sequentially spaced and distributed along the axial direction of the elastic inner expansion clamp 2 .
[0034] To achieve the connection between the fixed rod 1 and the annular circular plate 21. Figures 1 to 4 As shown, the inner wall of the annular circular plate 21 is provided with an internal thread, and the end of the horizontal fixing rod 1 extending into the elastic inner expansion clamp 2 is provided with an external thread, and the thread length of the external thread is longer than the thread length of the internal thread.
[0035] Specifically, the elastic inner expansion chuck 2 in this embodiment is any one of a metal elastic inner expansion chuck and a plastic elastic inner expansion chuck.
[0036] To achieve good fixation of products of different specifications and avoid cost increase due to fixture problems, the transverse fixing rod and the annular circular plate threaded connection of the elastic inner expansion chuck are adjusted to drive the inner expansion cone on the transverse fixing rod to move toward the inner wall of the elastic inner expansion chuck, thereby supporting the elastic inner expansion chuck outward. The axial length of the inner expansion cone is shorter than the axial length of the elastic inner expansion chuck to achieve good connection between the inner expansion cone and the elastic inner expansion chuck. At the same time, a stop shoulder is provided at one end of the transverse fixing rod, and the outer diameter of the stop shoulder is larger than the inner diameter of the annular circular plate to avoid deformation of the elastic inner expansion chuck caused by over-tightening of the threaded connection.
[0037] Although the terms such as horizontal fixing rod 1, conical body 11, stop shoulder 12, elastic inner expansion clamp 2, annular disc 21, and inner limit rib 22 are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.
[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
Claims
1. A fastener fixing device for electroplating, comprising a transverse fixing rod (1), wherein a conical elastic inner expansion chuck (2) is provided at one end of the transverse fixing rod (1). It is characterized in that At least a portion of the transverse fixing rod (1) is inserted into the elastic internal expansion chuck (2), and the elastic internal expansion chuck (2) and the transverse fixing rod (1) are threadedly connected. An inner expansion cone (11) inserted into the elastic internal expansion chuck (2) is provided on the transverse fixing rod (1), and the axial length of the inner expansion cone (11) is shorter than the axial length of the elastic internal expansion chuck (2).
2. The fastener electroplating fixture according to claim 1, It is characterized in that The inner conical taper of the elastic inner expansion chuck (2) is consistent with the outer conical taper of the inner expansion cone (11).
3. The fastener electroplating fixture according to claim 1, It is characterized in that One end of the transverse fixing rod (1) extending into the elastic inner expansion clamp (2) is also provided with a stop shoulder (12), and the stop shoulder (12) is located at the small diameter end of the inner expansion cone (11).
4. The fastener electroplating fixture according to claim 3, It is characterized in that The stop shoulder (12) is of cylindrical structure, and the outer diameter of the stop shoulder (12) is equal to the diameter of the small diameter end of the inner expansion cone (11).
5. The fastener electroplating fixture according to claim 4, It is characterized in that The small diameter end of the inner expanded cone (11) is connected to the stop shoulder (12).
6. The fastener electroplating fixture according to claim 4, It is characterized in that An annular circular plate (21) is provided at the small diameter end of the elastic internal expansion clamp (2), and the transverse fixing rod (1) and the annular circular plate (21) are threadedly connected.
7. The fastener electroplating fixture according to claim 6, It is characterized in that The inner diameter of the annular circular plate (21) is smaller than the outer diameter of the stop shoulder (12).
8. The fastener electroplating fixture according to claim 1, It is characterized in that The inner wall of the elastic inner expansion clamp (2) is provided with a plurality of circles of inner limiting convex ribs (22) which are sequentially spaced and distributed along the axial direction of the elastic inner expansion clamp (2).
9. The fastener electroplating fixture according to claim 6, It is characterized in that An inner wall of the annular circular plate (21) is provided with an internal thread, and an end of the transverse fixing rod (1) extending into the elastic inner expansion clamp (2) is provided with an external thread, the thread length of the external thread being longer than the thread length of the internal thread.
10. The fastener electroplating fixture according to claim 1, It is characterized in that The elastic internal expansion chuck (2) is any one of a metal elastic internal expansion chuck and a plastic elastic internal expansion chuck.