Quick positioning tool for saddle finishing

Abstract

The utility model discloses a kind of quick positioning tool for saddle finish machining, relate to machining tool technical field.The utility model includes tooling bottom plate, datum seat, auxiliary seat and special pressing plate assembly.Tooling bottom plate is installed as whole foundation, datum seat and auxiliary seat are fixed on it, the accurate positioning of saddle is realized by positioning clamping strip, limiting plate and limiting strip, and special pressing plate assembly is completed product compression with screw rod, fastening nut.The tool is designed based on two-point line, three-point surface principle, without special person table adjustment, and the operation of material replacement is simple and efficient, and pressing plate force is unified, combined with double rotary table horizontal machining center, it can realize seamless connection of processing and material replacement, and it is suitable for the batch finish machining of 500-600-700 specification saddle.

Description

Technical Field

[0001] This utility model belongs to the field of machining tooling technology, and in particular relates to a quick positioning tooling for precision machining of saddle seats. Background Technology

[0002] In the precision machining of saddle products, traditional tooling suffers from insufficient positioning accuracy and complex material changeover operations. Material changeovers require specialized personnel for dial gauge adjustments, which not only incurs labor costs but also makes it difficult to uniformly apply pressure, affecting product quality stability. Furthermore, the lack of seamless integration between machining and material changeover processes leads to low production efficiency, failing to meet the demands of mass production.

[0003] Therefore, there is an urgent need for a precision machining tool that can achieve accurate positioning, simplify operation, and improve efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a quick positioning fixture for precision machining of saddle seats, thereby solving existing problems.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a quick positioning fixture for precision machining of saddle seats, including a fixture base plate, a reference seat, an auxiliary seat, and an auxiliary base. The fixture base plate is the overall mounting foundation. The reference seat and the auxiliary seat are fixed on the fixture base plate. The specially designed pressure plate assembly cooperates with the reference seat and the auxiliary seat to achieve product clamping and fixing.

[0007] In one embodiment, positioning clips matching the saddle are fixed to the inner sides of the upper surfaces of both the reference base and the auxiliary base.

[0008] In one embodiment, a limiting plate is fixed to the two surfaces of the reference base, and the limiting plate is fixed to the reference base by fastening bolts.

[0009] In one embodiment, limit strips are fixed to both sides of the inner sidewall of the auxiliary seat, and the limit strips are fixed to the auxiliary seat by fastening bolts.

[0010] In one embodiment, both the reference base and the auxiliary base have weight-reduction holes on one surface.

[0011] In one embodiment, the special pressure plate assembly includes two threaded rods fixed to both sides of the upper surface of the tooling base plate. A pressure plate and a fastening nut are sequentially sleeved on the periphery of the threaded rods. The pressure plate engages with the threaded rods through a through hole in the middle, and the fastening nut engages with the threaded rods through a threaded connection.

[0012] In one embodiment, pressure blocks are fixed at both ends of the lower surface of the pressure plate, and rubber protective pads are fixed on the lower surface of the pressure blocks.

[0013] This utility model has the following beneficial effects:

[0014] 1. Precise and stable positioning: The positioning clips and limit structures of the reference seat and auxiliary seat are precisely matched with the saddle, avoiding the positioning deviation problem of traditional tooling and ensuring the consistency of product processing accuracy.

[0015] 2. The operation is simplified and efficient, requiring no special personnel to calibrate and adjust the gauge. The material change process is convenient, and the use of a torque wrench can ensure uniform pressure on the pressure plate, reducing labor costs and solving the pain point of complicated material change in traditional tooling.

[0016] 3. Increase production capacity. When combined with a dual rotary table horizontal machining center, it achieves seamless connection between processing and material changing, greatly improving the capacity compared to traditional tooling and meeting the needs of mass production.

[0017] 4. Enhanced protection: The specially designed pressure plate assembly has a rubber protective pad under the pressure block, which can prevent surface damage when pressing the product and further ensure product quality.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall structure of a quick positioning tooling for precision machining of saddle seats;

[0021] Figure 2 This is a front view of a quick-positioning tooling for precision machining of a saddle.

[0022] Figure 3 This is a top view of a quick-positioning fixture for precision machining of a saddle.

[0023] Figure 4 This is a left view of a quick-positioning fixture for precision machining of a saddle.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Tooling base plate; 2. Reference seat; 3. Auxiliary seat; 4. Special pressure plate assembly; 5. Saddle; 21. Positioning clip; 22. Limiting plate; 23. Weight reduction hole; 31. Limiting strip; 41. Threaded rod; 42. Pressure plate; 43. Fastening nut; 44. Pressure block; 45. Rubber protective pad. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1

[0030] Please see Figures 1-4 As shown, this utility model is a quick positioning fixture for precision machining of saddle seats, including a fixture base plate 1, a reference seat 2, an auxiliary seat 3 and an auxiliary seat 4. The fixture base plate 1 is the overall mounting base. The reference seat 2 and the auxiliary seat 3 are fixed on the fixture base plate 1. The specially made pressure plate assembly 4 cooperates with the reference seat 2 and the auxiliary seat 3 to achieve product clamping and fixing.

[0031] Furthermore, positioning clips 21 that match the saddle 5 are fixed on the inner side of the upper surface of both the reference base 2 and the auxiliary base 3.

[0032] Furthermore, a limiting plate 22 is fixed to the two surfaces of the reference base 2, and the limiting plate 22 is fixed to the reference base 2 by fastening bolts.

[0033] Furthermore, limit strips 31 are fixed on both sides of the inner wall of the auxiliary seat 3, and the limit strips 31 are fixed to the auxiliary seat 3 by fastening bolts.

[0034] Furthermore, both the reference base 2 and the auxiliary base 3 have weight reduction holes 23 on one surface.

[0035] Furthermore, the special pressure plate assembly 4 includes two threaded rods 41 fixed on both sides of the upper surface of the tooling base plate 1. A pressure plate 42 and a fastening nut 43 are sequentially sleeved on the periphery of the threaded rods 41. The pressure plate 42 cooperates with the threaded rods 41 through the through hole in the middle, and the fastening nut 43 is threadedly engaged with the threaded rods 41.

[0036] Furthermore, pressure blocks 44 are fixed at both ends of the lower surface of the pressure plate 42, and rubber protective pads 45 are fixed on the lower surface of the pressure blocks 44.

[0037] Example 2

[0038] This embodiment describes a method for using a quick-positioning fixture for precision machining of saddle seats:

[0039] I. Scope of Application

[0040] This method of use is applicable to the precision machining of saddles with specifications of 500-600-700. It needs to be used in conjunction with a horizontal machining center with a double rotary table. This tooling enables the rapid positioning and clamping of the saddle, as well as seamless connection between machining and material change, to meet the needs of mass production.

[0041] II. Preliminary Preparations

[0042] Tooling installation and calibration: Fix the tooling base plate 1 to the two rotary table worktables of the double rotary table horizontal machining center with bolts. Use a level to measure the levelness of the tooling base plate 1 and ensure that the levelness error does not exceed 0.01mm / m. Use a dial indicator to check the perpendicularity of the positioning clips 21, limit plates 22 and limit strips 31 of the reference seat 2 and auxiliary seat 3 to the reference surface of the tooling base plate 1. The error should be controlled within 0.02mm. If it exceeds the error range, it should be calibrated by adjusting the base plate bolts or grinding the bottom of the seat.

[0043] Tools and materials preparation: Prepare the saddle to be processed (500-600-700 specification), torque wrench (preset torque value, adjusted according to the saddle material, usually 45-55 N·m), cleaning cloth, and check whether the threaded rod 41, fastening nut 43, pressure plate 42, pressure block 44 and rubber protective pad 45 of the special pressure plate assembly 4 are intact, and ensure that the rubber protective pad 45 is undamaged and the thread fit is not stuck.

[0044] Equipment debugging: Start the dual-rotor horizontal machining center, test the rotation accuracy and switching speed of the rotary table, and ensure that the tooling does not shake during the rotation of the rotary table; import the finishing program of the corresponding saddle, simulate the machining path, and confirm that the program matches the positioning position of the tooling to avoid interference between the tool and the tooling during the machining process.

[0045] III. Saddle Positioning and Clamping Operation

[0046] Saddle placement and initial positioning: The operator wipes the positioning clips 21 of the reference seat 2 and auxiliary seat 3 and the bottom of the saddle with a cleaning cloth to remove surface oil, iron filings and other impurities; the saddle 5 is placed steadily between the reference seat 2 and the auxiliary seat 3, so that the bottom of the saddle 5 is in contact with the positioning clips 21, and the sides are naturally in contact with the limiting plate 22 of the reference seat 2 and the limiting strip 31 of the auxiliary seat 3. At this time, the saddle 5 has completed the initial positioning, without the need for additional calibration adjustment. The positioning process takes ≤10 seconds.

[0047] Installation and precise clamping of pressure plate 42: Pick up pressure plate 42 from the special pressure plate assembly 4, align the through hole in the middle of pressure plate 42 with threaded rod 41, slowly insert threaded rod 41 and move downwards until the pressure block 44 on the lower surface of pressure plate 42 is aligned with the preset force point on the top of the saddle (avoiding the saddle machining area and easily deformable parts); take the fastening nut 43 and insert it into threaded rod 41, and tighten it initially by hand to ensure that pressure plate 42 and pressure block 44 are in contact with the saddle surface; use a torque wrench with a preset torque value to tighten the fastening nut 43 clockwise until the torque wrench makes a "click" sound, indicating that the torque has reached the set value, and the saddle clamping is completed. The clamping operation takes ≤15 seconds.

[0048] IV. Processing and Material Changeover Connection Operation

[0049] Saddle machining: After confirming that saddle 5 is clamped, start the finishing program through the machining center control panel. The double rotary table will move the fixture with saddle 5 to the machining area. Perform finishing operations such as surface milling and hole machining of saddle 5 according to the program. The fixture remains stable during the machining process, and the machining accuracy is controlled within ±0.05mm.

[0050] Synchronous material change preparation: While processing saddle 5 in the processing area, the operator repeats the "saddle positioning and clamping operation" steps on the other turntable of the double turntable to complete the positioning and clamping of the next saddle 5 to be processed, realizing parallel operation of processing and material change without waiting for the current saddle to be processed.

[0051] Turntable switching and finished product loading / unloading: After the saddle in the processing area is finished, the two turntables automatically switch, turning the finished saddle 5 to the material changing area, and at the same time turning the tooling with the new saddle 5 to the processing area to continue processing; the operator uses a torque wrench to loosen the fastening nut 43 in the material changing area counterclockwise, removes the pressure plate 42, and steadily lifts the finished saddle 5 with both hands and places it on the finished product turnover rack. Then, the new saddle 5 to be processed is immediately placed, and the positioning and clamping steps are repeated to complete one material changing cycle. The entire switching and loading / unloading process takes ≤20 seconds.

[0052] V. Daily Maintenance and Precautions

[0053] Routine cleaning: After each batch processing is completed, wipe the surface of each part of the tooling with a cleaning cloth, and focus on cleaning the iron filings and oil stains on the positioning clip 21, limit plate 22, limit strip 31 and rubber protective pad 45 to avoid impurities affecting the positioning accuracy; use compressed air to blow away the dust from the threaded holes of the tooling base plate 1 and the threads of the threaded rod 41 every week to prevent the threads from being blocked or worn.

[0054] Component Inspection and Replacement: Check the wear of positioning clip 21, limit plate 22, and limit strip 31 monthly. If the wear exceeds 0.1mm, replace them in time. Check the rubber protective pad 45 quarterly for aging or damage. If cracks appear or it loses its elasticity, replace it immediately to prevent damage to the saddle surface. Regularly check the thread fit between threaded rod 41 and fastening nut 43. If stripping occurs, replace the corresponding component in time.

[0055] Safety Precautions: Wear non-slip gloves during operation to avoid contact with sharp parts or injury from tooling; when using a torque wrench, operate according to the preset torque value and do not exceed the torque to tighten the fastening nut 43 to prevent deformation of the threaded rod 41 or crushing of the saddle 5; during the rotation of the double turntable, do not put your hands or other objects into the turntable area to avoid safety accidents.

[0056] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A quick-positioning fixture for precision machining of a saddle seat, comprising a fixture base plate (1), a reference seat (2), an auxiliary seat (3), and a specially designed pressure plate assembly (4), characterized in that: The tooling base plate (1) serves as the overall installation foundation. The reference seat (2) and the auxiliary seat (3) are fixed on the tooling base plate (1). The special pressure plate assembly (4) works in conjunction with the reference seat (2) and the auxiliary seat (3) to achieve product clamping and fixing.

2. The quick positioning fixture for precision machining of a saddle seat according to claim 1, characterized in that, The inner side of the upper surface of both the reference seat (2) and the auxiliary seat (3) is fixed with a positioning strip (21) that matches the saddle (5).

3. The quick positioning fixture for precision machining of a saddle seat according to claim 1, characterized in that, The reference base (2) has a limiting plate (22) fixed on its two surfaces, and the limiting plate (22) is fixed to the reference base (2) by fastening bolts.

4. The quick positioning fixture for precision machining of a saddle seat according to claim 1, characterized in that, Limiting strips (31) are fixed on both sides of the inner wall of the auxiliary seat (3), and the limiting strips (31) are fixed to the auxiliary seat (3) by fastening bolts.

5. The quick positioning fixture for precision machining of a saddle seat according to claim 1, characterized in that, The reference base (2) and the auxiliary base (3) both have weight reduction holes (23) on one surface.

6. The quick positioning fixture for precision machining of a saddle seat according to claim 1, characterized in that, The special pressure plate assembly (4) includes two threaded rods (41) fixed on both sides of the upper surface of the tooling base plate (1). The threaded rods (41) are fitted with pressure plates (42) and fastening nuts (43) in sequence on their circumferential sides. The pressure plates (42) cooperate with the threaded rods (41) through the through hole in the middle. The fastening nuts (43) are threadedly engaged with the threaded rods (41).

7. The quick positioning fixture for precision machining of a saddle seat according to claim 6, characterized in that, Pressure blocks (44) are fixed at both ends of the lower surface of the pressure plate (42), and rubber protective pads (45) are fixed on the lower surface of the pressure blocks (44).

Images