Hydraulic clamp for milling leaf spring seat
By designing a hydraulic clamping fixture for milling leaf spring seats, and utilizing the cooperation of hydraulic rods and pressing blocks, automated clamping of leaf spring seats was achieved, solving the problems of long processing time and large errors of traditional fixtures, and improving processing efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN HENGDU ELECTROMECHANICAL CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional leaf spring holder fixtures rely on manual operation, which is time-consuming and prone to causing operator fatigue, leading to clamping position deviations and becoming a bottleneck for processing efficiency.
Design a milling plate spring seat hydraulic clamp, which uses hydraulic rods to control the height adjustment of the lifting plate and positioning rod, and achieves automated clamping through the cooperation of the pressing block and the column, simplifying the workpiece fixing process.
It enables fast and reliable clamping of leaf spring seats, improves processing efficiency and accuracy, and reduces errors caused by manual intervention.
Smart Images

Figure CN224407024U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of leaf spring seat processing technology, specifically a hydraulic clamp for milling leaf spring seats. Background Technology
[0002] As the automotive manufacturing industry accelerates towards intelligent and large-scale production, efficient and high-precision machining of parts has become the key to enhancing the competitiveness of enterprises. As a core component of the vehicle suspension system, the leaf spring seat undertakes the dual functions of load transmission and shock absorption. Its machining accuracy is directly related to the vehicle's driving safety and comfort. This makes the machining processes of leaf spring seat, such as turning, milling, drilling, and grinding, extremely meticulous. Reliable workpiece clamping is the foundation for ensuring machining accuracy.
[0003] Traditional leaf spring seat clamps rely heavily on manual operation, fixing the workpiece by repeatedly tightening locking bolts and adjusting pressure plates. This process not only consumes a lot of the operator's physical strength, with each clamping session taking several minutes, but frequent manual intervention can also easily lead to operator fatigue and clamping position deviations. In large-scale production scenarios, such manual clamps become a bottleneck restricting processing efficiency. Therefore, this application proposes a hydraulic clamp for milling leaf spring seats. Utility Model Content
[0004] To address the problems mentioned in the background art, this utility model provides the following technical solution: a milling plate spring seat hydraulic clamp, comprising a base plate, a shelf plate on the top of the base plate, support columns fixedly connected to the top of the base plate at the four corners of the bottom of the shelf plate, four vertically penetrating openings in a rectangular arrangement on the top of the shelf plate, four uprights fixedly installed on the top of the base plate, the four uprights being inserted through the four openings respectively, positioning rods being movably inserted into each of the four openings, vertically penetrating through holes in each of the four positioning rods, and the through holes in the four positioning rods respectively fitting onto the corresponding uprights, a lifting plate fixedly installed between the bottom ends of the four positioning rods, a spring seat placed on the top of the shelf plate, positioning holes being opened at the four corners of the spring seat, and the four positioning holes on the spring seat respectively fitting onto the corresponding positioning rods.
[0005] Preferably, the positioning rod has slots on both sides that communicate with the through hole, and a fixing shaft is fixedly installed between the top of the sidewalls of the two slots, and a pressing block that can be flipped inward inside the slot is movably sleeved on the two fixing shafts.
[0006] Preferably, the top of the extrusion block is set as a slope one, and the top of the slot is set as a slope two. When the extrusion block is in a vertical state, the slope one at the top of the extrusion block fits with the slope two at the top of the slot, the inner side of the extrusion block fits with the column, and the outer side of the extrusion block extends out of the slot.
[0007] Preferably, the bottom of the pressing blocks on both sides of each positioning rod protruding from the slot can abut against the two ends of the positioning hole on the top of the leaf spring seat, and the diameter of the positioning rod is the same as the diameter of the positioning hole on the leaf spring seat.
[0008] Preferably, the lifting plate is located between the base plate and the shelf, and the lifting plate, the base plate and the shelf are all parallel to each other. A hydraulic rod is installed at the center of the bottom of the shelf, and the telescopic end of the hydraulic rod is fixedly connected to the center of the top of the lifting plate.
[0009] Preferably, the shape of the through hole inside the positioning rod is adapted to the shape of the column, and the top of both the positioning rod and the column are set to be arc-shaped.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] The height of the lifting plate and the positioning rod can be adjusted by controlling the hydraulic rod. When the column and the extrusion block are not in contact, the extrusion block can be squeezed and flipped into the through hole, so that the leaf spring seat can be smoothly fitted onto the four positioning rods, thereby realizing the positioning of the leaf spring seat.
[0012] After placing the leaf spring seat, control the positioning rod to move down so that the column contacts the extrusion block. Under the action of the column, the extrusion block cannot be flipped. As the positioning rod descends, the extrusion block can press against the top of the leaf spring seat, thereby achieving the clamping of the leaf spring seat. Attached Figure Description
[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the structure connecting the base plate, the storage plate, and the lifting plate of this utility model;
[0016] Figure 3 This is a schematic diagram of the connection between the base plate, the shelf, and the column of this utility model;
[0017] Figure 4 This is a schematic diagram of the connection between the positioning rod and the column of this utility model;
[0018] Figure 5 This is an enlarged structural diagram of point A in this utility model;
[0019] Figure 6 This is a side view of the present invention;
[0020] In the diagram: 1. Base plate; 2. Support column; 3. Shelf; 4. Through opening; 5. Column; 6. Lifting plate; 7. Positioning rod; 8. Through hole; 9. Hydraulic rod; 10. Leaf spring seat; 11. Groove; 12. Fixed shaft; 13. Extrusion block. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0022] Depend on Figure 1-6 The present invention includes a base plate 1, a shelf 3 on the top of the base plate 1, and support columns 2 fixedly connected to the top of the base plate 1 at the four corners of the bottom of the shelf 3. Four vertically penetrating openings 4 are provided on the top of the shelf 3, and the four openings 4 are rectangularly distributed. Four uprights 5 are fixedly installed on the top of the base plate 1, and the four uprights 5 are respectively inserted through the four openings 4. Positioning rods 7 are movably inserted into each of the four openings 4, and each of the four positioning rods 7 has a vertically penetrating through hole 8. Furthermore, the through holes 8 inside the four positioning rods 7 are respectively fitted onto the corresponding columns 5. A lifting plate 6 is fixedly installed between the bottom ends of the four positioning rods 7. A leaf spring seat 10 is placed on the top of the shelf 3. Positioning holes are provided at the four corners of the leaf spring seat 10, and the four positioning holes on the leaf spring seat 10 are respectively fitted onto the corresponding positioning rods 7. By the insertion and cooperation of the positioning rods 7 and the positioning holes, the position of the leaf spring seat 10 can be fixed. By lowering the horizontal height of the positioning rods 7, the leaf spring seat 10 can be clamped and fixed.
[0023] like Figure 4 and Figure 5 As shown, slots 11 communicating with through holes 8 are provided on both sides of the positioning rod 7. Fixed shafts 12 are fixedly installed between the top of the side walls of the two slots 11. Each fixed shaft 12 is movably fitted with a pressing block 13 that can flip inward within the slot 11. The top of the pressing block 13 can flip within the slot 11 with the fixed shaft 12 as the center. When the pressing block 13 is not blocked by the column 5, the bottom of the pressing block 13 can flip into the through hole 8, so that the positioning hole on the leaf spring seat 10 can be smoothly fitted onto the positioning rod 7.
[0024] like Figure 4 , Figure 5 and Figure 6As shown, the top of the extrusion block 13 is set as a slope one, and the top of the slot 11 is set as a slope two. When the extrusion block 13 is in a vertical state, the slope one at the top of the extrusion block 13 fits with the slope two at the top of the slot 11. The inner side of the extrusion block 13 fits with the column 5, and the outer side of the extrusion block 13 extends out of the slot 11. When the column 5 is located between the two extrusion blocks 13, the extrusion block 13 is squeezed by the column 5 and cannot rotate inward. The top of the extrusion block 13 is squeezed by the top of the slot 11, which can restrict and constrain the position of the extrusion block 13, so that the bottom of the extrusion block 13 can remain horizontal. In this way, when the positioning rod 7 descends, the bottom of the extrusion block 13 can press down on the leaf spring seat 10 sleeved on the positioning rod 7, thereby completing the fixed clamping of the leaf spring seat 10.
[0025] like Figure 1 and Figure 6 As shown, the bottom of the pressing blocks 13 on both sides of each positioning rod 7 protruding from the slot 11 can abut against the two ends of the positioning hole on the top of the leaf spring seat 10. The diameter of the positioning rod 7 is the same as the diameter of the positioning hole on the leaf spring seat 10. By pressing the bottom of the pressing block 13 against the top of the leaf spring seat 10, the position of the leaf spring seat 10 can be fixed. By the insertion and cooperation of the positioning rod 7 and the positioning hole, the fixing and clamping of the leaf spring seat 10 can be further strengthened.
[0026] like Figure 1 and Figure 6 As shown, the lifting plate 6 is located between the base plate 1 and the shelf 3, and the lifting plate 6, the base plate 1 and the shelf 3 are all parallel to each other. A hydraulic rod 9 is installed at the center of the bottom of the shelf 3, and the telescopic end of the hydraulic rod 9 is fixedly connected to the center of the top of the lifting plate 6. By controlling the hydraulic rod 9, the lifting plate 6 can be driven to adjust its position and height between the base plate 1 and the shelf 3, thereby changing the degree to which the column 5 is inserted into the through hole 8 inside the positioning rod 7.
[0027] like Figure 2 , Figure 3 and Figure 4 As shown, the shape of the through hole 8 inside the positioning rod 7 is adapted to the shape of the column 5, and the top of both the positioning rod 7 and the column 5 are set to be arc-shaped. This makes it easier to fit the leaf spring seat 10 onto the four positioning rods 7 when installing the leaf spring seat 10. When the positioning rod 7 moves up and down, the arc surface at the top of the column 5 makes it easier for it to penetrate between the two extrusion blocks 13.
[0028] Working principle: When installing the leaf spring seat 10, the hydraulic rod 9 is controlled to drive the lifting plate 6 to move upward, thereby changing the horizontal height of the positioning rod 7. When the positioning rod 7 moves upward to the point where the top of the column 5 is no longer between the two pressing blocks 13, the four positioning holes on the leaf spring seat 10 can be respectively fitted onto the four positioning rods 7. When the leaf spring seat 10 moves to the slot 11, it will press the pressing block 13. The pressing block 13 flips into the through hole 8 and will not block the downward movement of the leaf spring seat 10, thus placing the leaf spring seat 10 on the top of the shelf 3. Then, the hydraulic rod 9 is controlled to push the lifting plate 6 downward. When the top of the column 5 is inserted between the corresponding two pressing blocks 13, the pressing block 13 is blocked and remains vertical. As the positioning rod 7 continues to descend, the bottom of the pressing block 13 abuts against the top of the leaf spring seat 10, thereby achieving fixed clamping of the leaf spring seat 10.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A milling plate spring seat hydraulic clamp, comprising a base plate (1), characterized in that: A shelf (3) is provided on the top of the base plate (1). Support columns (2) are fixedly connected to the top of the base plate (1) at the four corners of the bottom of the shelf (3). Four vertical through openings (4) are provided on the top of the shelf (3), and the four through openings (4) are arranged in a rectangular shape. Four uprights (5) are fixedly installed on the top of the base plate (1). The four uprights (5) are respectively inserted through the four through openings (4). Positioning devices are movably inserted into each of the four through openings (4). The rod (7) has through holes (8) that run vertically through each of the four positioning rods (7), and the through holes (8) inside the four positioning rods (7) are respectively fitted onto the corresponding columns (5). A lifting plate (6) is fixedly installed between the bottom ends of the four positioning rods (7). A leaf spring seat (10) is placed on the top of the shelf (3). Positioning holes are opened at the four corners of the leaf spring seat (10), and the four positioning holes on the leaf spring seat (10) are respectively fitted onto the corresponding positioning rods (7).
2. The milling plate spring seat hydraulic clamp according to claim 1, characterized in that: The positioning rod (7) has slots (11) on both sides that communicate with the through hole (8). A fixing shaft (12) is fixedly installed between the top of the side wall of the two slots (11), and a pressing block (13) that can be flipped inward in the slot (11) is movably sleeved on the two fixing shafts (12).
3. A milling plate spring seat hydraulic clamp according to claim 2, characterized in that: The top of the extrusion block (13) is set as a slope one, and the top of the slot (11) is set as a slope two. When the extrusion block (13) is in a vertical state, the slope one at the top of the extrusion block (13) fits into the slope two at the top of the slot (11), the inner side of the extrusion block (13) fits into the column (5), and the outer side of the extrusion block (13) extends out of the slot (11).
4. A milling plate spring seat hydraulic clamp according to claim 1, characterized in that: The bottom of the pressing blocks (13) on both sides of each positioning rod (7) protruding from the slot (11) can abut against the two ends of the positioning hole at the top of the leaf spring seat (10). The diameter of the positioning rod (7) is the same as the diameter of the positioning hole on the leaf spring seat (10).
5. A milling plate spring seat hydraulic clamp according to claim 1, characterized in that: The lifting plate (6) is located between the base plate (1) and the shelf (3), and the lifting plate (6), the base plate (1) and the shelf (3) are all parallel to each other. A hydraulic rod (9) is installed at the center of the bottom of the shelf (3), and the telescopic end of the hydraulic rod (9) is fixedly connected to the center of the top of the lifting plate (6).
6. A milling plate spring seat hydraulic clamp according to claim 1, characterized in that: The shape of the through hole (8) inside the positioning rod (7) is adapted to the shape of the column (5), and the top of both the positioning rod (7) and the column (5) are set to be arc-shaped.