A bushing stamping tool
By setting a positioning shaft and positioning structure in the stamping table, the problem of bushing misalignment during stamping preparation was solved, achieving precise alignment between the bushing and the stamping head and improving installation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING LIJIU MASCH MFG CO LTD
- Filing Date
- 2025-02-19
- Publication Date
- 2026-06-16
AI Technical Summary
In existing technologies, bushings are prone to misalignment during stamping preparation, making it difficult to align them quickly and affecting installation efficiency.
Positioning shafts and positioning structures, such as protrusions and grooves, are set in the stamping table to ensure that the bushing is coaxially aligned with the stamping head. A detachable stamping head design is adopted to accommodate bushings of different sizes.
This enables precise installation of the bushings, improves installation efficiency, and avoids the hassle of alignment adjustments.
Smart Images

Figure CN224359208U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical parts technology, specifically relating to a bushing stamping fixture. Background Technology
[0002] Bushings are accessories used on the outside of mechanical parts to achieve functions such as sealing and wear protection. They refer to rings that act as gaskets. Bushings are mostly made of soft metals, rubber, nylon, and non-metallic polymers. These materials are relatively soft and inexpensive. In various harsh working environments, bushings withstand vibration, friction, and corrosion to protect the parts they cover. Bushings themselves are easy to replace when damaged, and are inexpensive and economical.
[0003] Chinese patent document CN202322814883.7 discloses an adjusting arm bushing stamping assembly device, including a stamping assembly device body, a mounting base, and a bushing placement box; the stamping assembly device body is detachably connected to the mounting base at its lower part; a transverse slide rail is connected to the mounting base; a fixing plate is slidably connected to the transverse slide rail; a vertical slide rod is connected to the lower part of the bushing placement box; the vertical slide rod is slidably connected to the fixing plate at its vertical part; a locking panel is connected to the side of the fixing plate; a locking bolt is connected to the locking panel; and the vertical slide rod has an upper threaded connection hole and a lower threaded connection hole.
[0004] As the applicant further investigated, it was discovered that during the preparation for stamping, the bushing was misaligned and often could not be quickly aligned with the workpiece to be installed. Since the above position could not be effectively guaranteed, the upper stamping head needed to be adjusted back and forth to adjust the coaxiality of the bushing before the actual stamping, which was inconvenient to use. Utility Model Content
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A bushing stamping fixture, comprising:
[0007] The upper top plate can be connected to an external power source, and at least one pair of guide rods are connected to the lower end of the upper top plate;
[0008] The stamping head is conformable to the bushing and is connected to the lower end of the upper top plate;
[0009] The base has a guide sleeve at its upper end that mates with the guide rod;
[0010] A stamping table is disposed below the stamping head and connected to the base. The stamping table has a first cavity, and a positioning shaft coaxial with the stamping head is disposed at the center of the first cavity.
[0011] The upper surface of the stamping platform is also provided with a positioning structure that cooperates with the workpiece.
[0012] Furthermore, the positioning structure includes protrusions and / or grooves.
[0013] Furthermore, the stamping table is inverted T-shaped.
[0014] Furthermore, the stamping table is detachably connected to the base.
[0015] Furthermore, the stamping head has a second cavity, and after the stamping head is engaged with the stamping table, the upper section of the positioning shaft is located in the second cavity.
[0016] Furthermore, the upper top plate is connected to an upper pressure seat, and the punch head is detachably connected to the upper pressure seat.
[0017] Compared with the prior art, this utility model has the following advantages:
[0018] An improvement to the existing stamping table is adopted, in which a positioning shaft is set in the stamping table. This allows the bushing to be accurately coaxial with the stamping head when it is placed. The bushing can be quickly installed and aligned without the need for adjustment, thus improving the installation efficiency of the bushing. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram illustrating an embodiment of the present utility model;
[0020] Figure 2 This is a cross-sectional structural diagram (state one) illustrating an embodiment of the present utility model;
[0021] Figure 3 This is a cross-sectional structural diagram (state two) illustrating an embodiment of the present utility model;
[0022] Figure 4 To illustrate the exploded structural diagram of the stamping table and workpiece in the embodiments of this utility model (view 1);
[0023] Figure 5 To illustrate the exploded structural diagram of the stamping table and workpiece in the embodiments of this utility model (perspective 2);
[0024] The reference numerals in the accompanying drawings include:
[0025] Top plate 1, guide rod 10, upper pressure seat 11, punch head 2, second cavity 20, base 3, guide sleeve 30, punching table 4, first cavity 40, positioning shaft 41, protrusion 50, groove 51, workpiece 60, bushing 61. Detailed Implementation
[0026] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0027] The accompanying drawings are for illustrative purposes only and represent schematic diagrams, not actual physical objects. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals in the drawings of the embodiments of this utility model correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" appear, indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0028] like Figure 1 - Figure 5 As shown, a bushing stamping fixture of the present invention includes an upper top plate 1, a stamping head 2, a base 3, and a stamping table 4.
[0029] The upper top plate 1 is connected to an external power source at its upper end, and at least one pair of guide rods 10 are connected to the lower end of the upper top plate 1. The external power source can be a telescopic cylinder or a hydraulic cylinder.
[0030] The stamping head 2 is conformally fitted to the bushing 61 and is connected to the lower end of the upper top plate 1;
[0031] The upper end of the base 3 is connected to a guide sleeve 30 that mates with the guide rod 10;
[0032] The stamping table 4 is located below the stamping head 2 and is connected to the base 3. The stamping table 4 has a first cavity 40, and a positioning shaft 41 coaxial with the stamping head 2 is provided at the center of the first cavity 40.
[0033] The cooperation between the guide sleeve 30 and the guide rod 10 ensures stability during the process when the upper top plate 1 is driven by an external power source to move the impulse head toward the stamping table 4.
[0034] An improvement was made to the existing stamping table 4 by setting a positioning shaft 41 in the stamping table 4, so that when the bushing 61 to be stamped is placed, it can be accurately kept coaxial with the stamping head 2. The bushing 61 can be quickly installed and aligned without the need for further adjustment, thus improving the installation efficiency of the bushing 61.
[0035] The upper surface of the stamping table 4 is also provided with a positioning structure that cooperates with the workpiece 60.
[0036] The purpose of this positioning structure is to further and quickly position the placed workpiece 60, while avoiding the offset between the preset axis of the workpiece 60 and the axis of the stamping head 2.
[0037] When preparing to stamp and install the bushing 61, first place the workpiece 60 on the stamping table 4. Due to the positioning structure, the lower end face of the workpiece 60 and the upper end face of the stamping table 4 are in mutual cooperation.
[0038] Specifically, such as Figure 4 , Figure 5 As shown, the positioning structure can be provided with multiple protrusions 50 on the upper end face of the stamping table 4 and a groove 51 that conforms to the protrusions 50 on the lower end face of the workpiece 60. Of course, the positions of the protrusions 50 and the groove 51 can be interchanged, with the protrusions 50 set at the bottom of the workpiece 60 and the groove 51 set on the stamping table 4. Alternatively, grooves 51 and protrusions 50 can be provided on both the stamping table 4 and the workpiece 60, as long as the corresponding protrusions 50 and grooves 51 form a matching positioning structure.
[0039] The aforementioned stamping table 4 is inverted T-shaped, and its bottom is provided with external threads, which can be connected to the threaded hole in the base 3, so that the two form a detachable and replaceable structure.
[0040] Specifically, the stamping head 2 has a second cavity 20. After the stamping head 2 is engaged with the stamping table 4, the upper section of the positioning shaft 41 is located in the second cavity 20.
[0041] Furthermore, to increase the variety of stamping head 2 models and enable the installation of bushings 61 of different sizes, the stamping head 2 is designed to be detachable. Specifically, the upper top plate 1 is connected to the upper pressure seat 11, and the stamping head 2 is detachably connected to the upper pressure seat 11.
[0042] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.
Claims
1. A bushing stamping fixture, characterized in that, include: The upper top plate (1) can be connected to an external power source, and at least one pair of guide rods (10) are connected to the lower end of the upper top plate (1); The stamping head (2) is conformable to the bushing and is connected to the lower end of the upper top plate (1); The base (3) has a guide sleeve (30) connected to its upper end, which cooperates with the guide rod (10); A stamping table (4) is disposed at the lower part of the stamping head (2) and connected to the base (3). The stamping table (4) has a first cavity (40), and a positioning shaft (41) coaxial with the stamping head (2) is disposed at the center of the first cavity (40). The upper surface of the stamping table (4) is also provided with a positioning structure that cooperates with the workpiece (60).
2. The bushing stamping fixture as described in claim 1, characterized in that: The positioning structure includes a protrusion (50) and / or a groove (51).
3. A bushing stamping fixture as described in claim 1 or 2, characterized in that: The stamping table (4) is inverted T-shaped.
4. The bushing stamping fixture as described in claim 3, characterized in that: The stamping table (4) is detachably connected to the base (3).
5. The bushing stamping fixture as described in claim 1, characterized in that: The stamping head (2) has a second cavity (20). After the stamping head (2) is engaged with the stamping table (4), the upper section of the positioning shaft (41) is located in the second cavity (20).
6. A bushing stamping fixture as described in claim 1, 2, 4, or 5, characterized in that: The upper top plate (1) is connected to an upper pressure seat (11), and the punch head (2) is detachably connected to the upper pressure seat (11).