Clamping tool for machining outer contours of high manganese steel assembled frog point rail and insert
By designing adjustable clamping tooling, the problem of low machining efficiency of high-manganese steel assembly trajectory rails and insert outer contours is solved, precise fixing and efficient processing are achieved, and processing accuracy and efficiency are improved.
Patent Information
- Application Number
- CN202422716228.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-11-08
AI Technical Summary
When processing high manganese steel assembled rut rails and insert outer contours, the existing technology is inefficient and cannot be fixed by magnetic clamping. It relies on U-shaped iron clamping and manual alignment, which is prone to side deviation and dimensional control difficulties. .
A clamping tool including a base and a clamping seat is designed. The clamping seat has a fixed baffle and a movable baffle. The opening angle is adjusted through the rotating mechanism and the pad adjustment mechanism, and combined with the locking mechanism and the limit stop. Achieve accurate fixing and adjustment of the processed parts.
Improves machining accuracy and efficiency, can process a single or multiple machining parts at once, adapt to different sizes and beveled outer contours, and reduces the dependence of manual rectification.
Smart Images
Figure CN222269436U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of railway turnout processing, in particular to a clamping tool for processing high manganese steel assembled frog heart rails and insert block outer contours. Background Art
[0002] High manganese steel frog is the core component of the railway turnout, which is used for the transfer and crossing of train vehicles between different tracks. According to the structure, it can be divided into integral cast frog and assembled frog. The characteristics of integral cast frog are good integrity and stability, and the characteristics of assembled frog are that the heart rail and wing rail can be partially replaced if they are damaged.
[0003] In the processing of the center rail and the insert, due to the large number of inclined surfaces of the outer contour, the processing amount is relatively large when processing the outer contour of the center rail and the insert. In order to save processing time, it is usually necessary to process the outer contour on an ordinary milling machine, so it is necessary to clamp and fix the workpieces such as the center rail and the insert. However, the high manganese steel material does not have magnetic absorption performance and cannot be fixed by a magnetic chuck. In the prior art, U-shaped iron clamping processing is often used, and the processing size is controlled by marking and manual alignment. One inclined surface needs to be aligned once, and manual alignment processing can only process one blank at a time, which is inefficient. Moreover, due to the structural restrictions on the top surface of some center rails and inserts, the arc is small, and some places cannot be marked. The processing according to the line is easy to deviate, and when processing one side of the raw material, the clamping on the other side is unevenly stressed and prone to lateral deviation. In addition, some high manganese steel center rails and inserts are prone to small deformation before processing, and the size cannot be controlled during processing. Utility Model Content
[0004] In order to solve the defects existing in the above-mentioned technology, the utility model provides a clamping tool for processing the outer contour of the high manganese steel assembled frog heart rail and the insert.
[0005] The technical solution adopted by the utility model to achieve the above technical effects is:
[0006] 4. The repairing kit for automotive dents, according to claim 1, wherein the tool is constructed with wood and have a plurality of locking plates, each of which has a plurality of locking plates, each of which has a plurality of locking plates having a plurality of locking plates. The plurality of locking plates have a plurality of locking plates, each of which has a plurality of locking plates. The plurality of locking plates have a plurality of locking plates, each of which has a plurality of locking plates.
[0007] Preferably, in the above-mentioned clamping tooling for processing the high manganese steel assembled frog rail and the outer contour of the insert, the upper surface of the clamping seat is formed with multiple T-slots arranged in parallel and perpendicular to the fixed baffle, one end of the T-slot starts from a side edge of the fixed baffle close to the movable baffle, and the other end extends in an open manner to the side edge of the clamping seat, and the movable baffle is fixed to the upper surface of the clamping seat by a T-bolt connected to the T-slot.
[0008] Preferably, in the above-mentioned clamping tool for processing the high manganese steel assembled frog rail and the outer contour of the insert, the movable baffle is an L-shaped structure, and its horizontal plate surface is provided with positioning holes for the T-bolts to pass through at the positions corresponding to the T-slots.
[0009] Preferably, in the above-mentioned clamping tool for machining the outer contour of the high manganese steel assembled frog rail and the insert, the clamping seat is provided with a limit block at one end corresponding to the rotating mechanism for limiting the workpiece clamped in the clamping cavity.
[0010] Preferably, in the above-mentioned clamping tooling for processing the high manganese steel assembled frog rail and the outer contour of the insert, the rotating mechanism includes two first sleeves with a spacing fixed to the lower surface of the clamping seat, a second sleeve fixed to the upper surface of the base, and a rotating shaft rotatably connected to the first sleeve and the second sleeve, the second sleeve is sleeved in the middle section of the rotating shaft, located between the two first sleeves, and an anti-slip sleeve is provided at the end of the rotating shaft.
[0011] Preferably, in the above-mentioned clamping tooling for processing the outer contour of the high manganese steel assembled frog rail and the insert, the height adjustment mechanism includes a positioning cylinder fixed on the lower surface of the clamping seat, and a replaceable pad placed on the upper surface of the base and adapted to the required opening angle of the clamping seat, the pad being placed on the positioning cylinder to position the opening angle of the clamping seat on the base.
[0012] Preferably, in the above-mentioned clamping tooling for processing the outer contour of the high manganese steel assembled frog rail and the insert, the locking mechanism includes a first fixed block formed on the left and right edges of the clamping seat, a second fixed block formed on the left and right edges of the base and corresponding to the middle part of the first fixed block, and a locking bolt pair connecting the first fixed block and the second fixed block, the first fixed block is formed with a strip hole for adjusting the nut position of the locking bolt pair, and the second fixed block is formed with a bolt hole.
[0013] The beneficial effects of the utility model are as follows: the clamping tool of the utility model can adjust the opening angle of the clamping seat on the base according to the cushion adjustment mechanism to adapt to the processing of heart rails and inserts of various sizes and inclined outer contours, and with the movable baffle that can be movably positioned, a single or two workpieces can be processed at one time, which not only improves the processing accuracy of the heart rail and the insert, but also improves its processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 A three-dimensional diagram of the present invention from one viewing angle;
[0015] Figure 2 This is a state diagram of clamping the center rail processing part of the utility model;
[0016] Figure 3 It is a side view of the utility model;
[0017] Figure 4 This is a three-dimensional diagram of the assembly of the clamping seat and the movable baffle of the utility model;
[0018] Figure 5 This is a three-dimensional view of the lower surface of the clamping seat of the utility model;
[0019] Figure 6 This is a three-dimensional view of the upper surface of the clamping seat of the utility model;
[0020] Figure 7 This is a three-dimensional view of the upper surface of the base of the utility model;
[0021] Figure 8 It is a three-dimensional diagram of the movable baffle of the utility model;
[0022] Fig. 9 It is a three-dimensional diagram of the heart rail to be processed of the utility model;
[0023] Fig.10 It is a three-dimensional diagram of the insert to be processed of the utility model;
[0024] Fig.11 It is a schematic diagram of calculating the height of the cushion block in the utility model;
[0025] Fig.12 It is a schematic diagram of the opening angle of the clamping seat of the utility model. DETAILED DESCRIPTION
[0026] In order to further understand the present invention, the present invention is further described below with reference to the accompanying drawings and specific embodiments:
[0027] In the description of this utility, it should be noted that the terms "vertical", "upper", "lower", "horizontal", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this utility. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0028] In the description of this utility, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility can be understood according to specific circumstances.
[0029] See also Figure 1 , Figure 2 and Figure 3 As shown in the figure, the embodiment of the utility model proposes a clamping tool for processing the outer contour of the high manganese steel assembled frog rail and the insert, the clamping tool comprises a base 1 and a clamping seat 2, wherein, Figure 4 and Figure 6 As shown, the upper surface of the clamping seat 2 is formed with a fixed baffle 21 extending along its length direction. In some embodiments, the fixed baffle 21 can be a structure integrally formed with the clamping seat 2, or a structure welded and fixed to the clamping seat 2. Figure 2 and Figure 4 As shown, a movable baffle 3 is also provided on the upper surface of the clamping seat 2. The movable baffle 3 is arranged parallel to one side of the fixed baffle 21, and the relative distance between the movable baffle 3 and the fixed baffle 21 is adjustable. A clamping cavity 7 for clamping and fixing the workpiece 100 is formed between the movable baffle 3 and the fixed baffle 21. A plurality of tightening bolt holes 211 are formed on the fixed baffle 21 along its length direction. Tightening bolts 212 for tightening the workpiece 100 clamped in the clamping cavity 7 are provided in the tightening bolt holes 211. The other side of the workpiece 100 is pressed against by the approaching movable baffle 3, and the workpiece 100 is tightly clamped in the clamping cavity 7 with the tightening bolts 212 on the fixed baffle 21. In order to be able to adjust the inclination angle of the clamped workpiece 100 so that the local surface of the outer contour to be processed is close to the processing tool in a horizontal posture, such as Figure 3As shown, the clamping seat 2 is rotatably connected to the base 1 at one end through a rotating mechanism 5, and the other end is positioned at an opening angle of the clamping seat 2 on the base 1 through a cushioning adjustment mechanism 6. When it is necessary to adjust the inclination angle of the workpiece 100 so that the local surface of the outer contour to be processed is close to the processing tool in a horizontal posture, the base 1 is first kept in a horizontal posture and fixed, and then the clamping seat 2 is rotated around the rotating mechanism 5 so that it has a corresponding opening angle on the base 1 until the local surface of the outer contour to be processed of the workpiece is in a horizontal posture, and then the clamping seat 2 is positioned on the base 1 at the corresponding opening angle through a specially designed cushioning adjustment mechanism 6, and the alignment of an inclined surface can be completed. In order to lock the clamping seat 2 at this opening angle, as shown in FIG. Figure 1 , Figure 2 and Figure 3 As shown, the side edges of the base 1 and the clamping seat 2 are provided with a locking mechanism for the clamping seat 2 with the opening angle positioned. After the clamping seat 2 adjusts the opening angle, its current opening posture can be locked on the base 1 through the locking mechanism.
[0030] Further, in a preferred embodiment of the present invention, Figure 4 and Figure 6 As shown, the upper surface of the clamping seat 2 is formed with a plurality of T-shaped slots 22 arranged in parallel and perpendicular to the fixed baffle 21, wherein one end of the T-shaped slot 22 starts from a side edge of the fixed baffle 21 close to the movable baffle 3, and the other end is open and extends to the side edge of the clamping seat 2. Figure 1 As shown, the movable baffle 3 is fixed to the upper surface of the clamping seat 2 by T-bolts 8 connected to the T-slots 22. When the relative distance between the movable baffle 3 and the fixed baffle 21 needs to be adjusted, the T-bolts 8 in each T-slot 22 are loosened to keep the movable baffle 3 in a movable loose state on the clamping seat 2. Then, the movable baffle 3 is pushed to a suitable spacing position and the T-bolts 8 in each T-slot 22 are tightened to complete the adjustment of the movable baffle 3.
[0031] In some embodiments, Figure 8 As shown, the movable baffle 3 is an L-shaped structure, and its horizontal plate surface is provided with positioning holes 31 for T-bolts 8 to pass through at positions corresponding to each T-slot 22. In order to prevent the workpiece 100 from slipping out of the side end of the clamping cavity 7, as shown in FIG. Figure 1 and Figure 2 As shown, the clamping seat 2 is provided with a limit stopper 4 at one end corresponding to the rotating mechanism 5 for limiting the workpiece clamped in the clamping cavity 7. The limit stopper 4 is fixed to the side end of the clamping seat 2 by bolts. In order to strengthen the structural strength of the fixed baffle 21, as shown in FIG. Figure 2 As shown, the fixed baffle plate 21 is further formed with a reinforcing rib plate 213 fixed on the clamping plate 2 on the side facing away from the movable baffle plate 3 .
[0032] Further, in a preferred embodiment of the present invention, Figure 5 and Figure 7 As shown, the rotating mechanism 5 comprises two first sleeves 52 fixed to the lower surface of the clamping seat 2 with a spacing therebetween, a second sleeve 53 fixed to the upper surface of the base 1, and a rotating shaft 51 rotatably connected between the first sleeve 52 and the second sleeve 53. The second sleeve 53 is sleeved at the middle section of the rotating shaft 51 and is located between the two first sleeves 52. An anti-drop sleeve 54 is provided at the end of the rotating shaft 51.
[0033] like Figure 5 and Figure 7 As shown, the cushion height adjustment mechanism 6 includes a positioning cylinder 61 fixed to the lower surface of the clamping seat 2, and a replaceable cushion block 62 placed on the upper surface of the base 1 and adapted to the required opening angle of the clamping seat 2. The cushion block 62 is placed on the positioning cylinder 61 to position the opening angle of the clamping seat 2 on the base 1. The cushion block 62 of corresponding size is made according to calculation, and various sizes of center rails and insert profiles can be processed with high processing accuracy.
[0034] Further, in a preferred embodiment of the present invention, Figure 1 , Figure 2 and Figure 3 As shown, the locking mechanism includes a first fixing block 23 formed on the left and right sides of the clamping seat 2, a second fixing block 11 formed on the left and right sides of the base 1 and corresponding to the middle of the first fixing block 23, and a locking bolt pair 9 connecting the first fixing block 23 and the second fixing block 11. Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, a strip hole 231 for adjusting the position of the nut of the locking bolt pair 9 is formed on the first fixing block 23 , and a bolt hole is formed on the second fixing block 11 .
[0035] In order to understand the alignment of the inclined surface of the workpiece, Fig. 9 and Fig.10 As shown, three-dimensional images of the heart rail to be processed and the insert to be processed are respectively shown. It can be seen from the figure that there are multiple inclined surfaces to be processed on the outer contour of the end face. When it is necessary to process a certain local surface, it is necessary to keep the local surface in a horizontal posture. At this time, it is clamped and fixed on the clamping seat 2 and the opening angle of the clamping seat 2 is adjusted until the local surface is in a horizontal posture.
[0036] In some cases, when the high manganese steel heart rail and insert undergo slight deformation before processing and the size cannot be controlled during processing, bolt holes can be opened on the workpiece. When the workpiece is clamped and fixed, T-bolts 8 are passed through the bolt holes on the workpiece to fix it on the T-slot 22, so that the high manganese steel workpiece with slight deformation can be corrected.
[0037] In order to better understand the automatic alignment principle of the present invention, please refer to the following Fig.11 and Fig.12 As shown in the schematic diagram, the processing steps of the clamping tool of the utility model are as follows:
[0038] Step 1: Processing the reference plane F1, placing the raw material horizontally on the clamping seat 2, at this time, the angle is not opened, that is, the clamping seat 2 and the base 1 are kept in a horizontal state parallel to each other, and then clamped and fixed by the fixed baffle 21 and the movable baffle 3, and the middle part of the outer contour of the raw material to be processed is used as the reference to mill out the reference plane F1;
[0039] Step 2: Calculate the height of the pad. According to the electronic drawing of the original workpiece, measure the angle α between the inclined surface F2 to be processed and the reference plane, and calculate the pad height H=Lxsinα; where Fig.11 As shown, L is the distance between the center of the rotating mechanism 5 and the center of the positioning cylinder 61 along the horizontal direction on the side of the clamping seat 2, and the distance L is a known data;
[0040] Step 3: Automatically align and process the pads of corresponding height according to the calculated pad height, such as Fig.12 As shown, the clamping seat 2 is opened, and the cushion block is placed on the base 1 at a position corresponding to the positioning cylinder 61. After the positioning cylinder 61 falls on the cushion block, the inclined surface F2 to be processed is automatically in a horizontal position without manual alignment.
[0041] In the embodiment of the present invention, the outer contour of the middle part of the center rail is a horizontal plane, that is, the reference plane F1, and the inclined surfaces F2 and F3 on both sides are processed based on the middle part. After processing the inclined surface F2 on one side, the workpiece can be turned over to process the inclined surface F3 on the other side. Although the clamping seat 2 can only rotate in one direction, when the inclined surface F3 on the other side needs to be processed, it is only necessary to turn the workpiece over. If the angle between the inclined surface on the other side and the reference plane F1 is different, a corresponding pad needs to be reprocessed.
[0042] To sum up, the clamping tool of the utility model can adjust the opening angle of the clamping seat on the base according to the cushion adjustment mechanism to adapt to the processing of heart rails and inserts of various sizes and inclined outer contours. In conjunction with the movable baffle that can be movably positioned, a single or two workpieces can be processed at a time, which not only improves the processing accuracy of the heart rail and the insert, but also improves its processing efficiency.
[0043] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and the specification only describe the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection required by the utility model is defined by the attached claims and their equivalents.
Claims
1. A clamping tool for processing the outer contour of a frog center rail and an insert made of high manganese steel, comprising a base (1) and a clamping seat (2), characterized in that: The upper surface of the clamping seat (2) is formed with a fixed baffle (21) extending along its length direction, and a movable baffle (3) is arranged parallel to one side of the fixed baffle (21) and the relative distance between the fixed baffle (21) is adjustable, and a clamping cavity (7) for clamping and fixing a workpiece is formed between the movable baffle (3) and the fixed baffle (21), and a plurality of tightening bolt holes (211) are formed on the fixed baffle (21) along its length direction, and tightening bolts (212) are arranged in the tightening bolt holes (211) for tightening the workpiece clamped in the clamping cavity (7), and one end of the clamping seat (2) is rotatably connected to the base (1) through a rotating mechanism (5), and the other end is used to position the opening angle of the clamping seat (2) on the base (1) through a cushioning adjustment mechanism (6), and the side edges of the base (1) and the clamping seat (2) are provided with a locking mechanism for the clamping seat (2) that has been positioned at the opening angle.
2. The clamping tool for processing the outer contour of the high manganese steel assembled frog rail and the insert according to claim 1, characterized in that: The upper surface of the clamping seat (2) is formed with a plurality of T-slots (22) arranged in parallel and perpendicular to the fixed baffle (21); one end of the T-slot (22) starts from a side edge of the fixed baffle (21) close to the movable baffle (3), and the other end is open and extends to the side edge of the clamping seat (2); the movable baffle (3) is fixed to the upper surface of the clamping seat (2) by means of T-bolts (8) connected to the T-slots (22).
3. The clamping tool for machining the outer contour of the high manganese steel assembled frog rail and the insert according to claim 2, characterized in that: The movable baffle (3) is an L-shaped structure, and its horizontal plate surface is provided with positioning holes (31) for the T-shaped bolts (8) to pass through at positions corresponding to the T-shaped slots (22).
4. The clamping tool for machining the outer contour of the high manganese steel assembled frog rail and the insert according to claim 1, characterized in that: The clamping seat (2) is provided with a limit stopper (4) at one end corresponding to the rotating mechanism (5) for limiting the position of the workpiece clamped in the clamping cavity (7).
5. The clamping tool for machining the outer contour of the high manganese steel assembled frog center rail and the insert according to claim 1, characterized in that: The rotating mechanism (5) comprises two first sleeves (52) fixed to the lower surface of the clamping seat (2) with a spacing therebetween, a second sleeve (53) fixed to the upper surface of the base (1), and a rotating shaft (51) rotatably connected between the first sleeves (52) and the second sleeve (53), wherein the second sleeve (53) is sleeved at the middle section of the rotating shaft (51) and is located between the two first sleeves (52), and an anti-slip sleeve (54) is provided at the end of the rotating shaft (51).
6. The clamping tool for machining the outer contour of the high manganese steel assembled frog rail and the insert according to claim 1, characterized in that: The pad height adjustment mechanism (6) comprises a positioning cylinder (61) fixed to the lower surface of the clamping seat (2), and a replaceable pad (62) placed on the upper surface of the base (1) and adapted to the required opening angle of the clamping seat (2); the pad (62) is placed on the positioning cylinder (61) to position the opening angle of the clamping seat (2) on the base (1).
7. The clamping tool for machining the outer contour of the high manganese steel assembled frog rail and the insert according to claim 1, characterized in that: The locking mechanism comprises a first fixing block (23) formed on the left and right sides of the clamping seat (2), a second fixing block (11) formed on the left and right sides of the base (1) and corresponding to the middle of the first fixing block (23), and a locking bolt pair (9) connecting the first fixing block (23) and the second fixing block (11), the first fixing block (23) being formed with a strip hole (231) for adjusting the nut position of the locking bolt pair (9), and the second fixing block (11) being formed with a bolt hole.
Citation Information
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