CN217122554U - Fixing device for processing brake action rod of railway wagon - Google Patents
Fixing device for processing brake action rod of railway wagon Download PDFInfo
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- CN217122554U CN217122554U CN202220970025.4U CN202220970025U CN217122554U CN 217122554 U CN217122554 U CN 217122554U CN 202220970025 U CN202220970025 U CN 202220970025U CN 217122554 U CN217122554 U CN 217122554U
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Abstract
The utility model discloses a fixing device of railway freight car brake action pole processing, wherein, a fixing device of railway freight car brake action pole processing, include: an L-shaped fixed seat and a clamping mechanism; one side of the support arm in the vertical direction of the L-shaped fixed seat, which is far away from the support arm in the horizontal direction of the L-shaped fixed seat, is connected with the main shaft of the machine tool through a connecting mechanism; the L-shaped fixed seat is provided with a fixed hole on the support arm in the horizontal direction; a supporting mechanism is detachably connected to the position, close to the top, of the support arm in the vertical direction of the L-shaped fixed seat, and the supporting mechanism is movably connected with the clamping mechanism; the clamping mechanism is positioned above the action rod. The problem that when an action rod is machined in the prior art, a drill jig sleeve for positioning a drill rod is frequently worn in the use process, and if the drill jig sleeve is not replaced in time, the positioning precision is reduced in machining, and the product quality is affected is solved; and the remaking and replacing of the drill jig sleeve need to consume resources and time, which affects the production efficiency and increases the production cost.
Description
Technical Field
The utility model relates to a railway freight car makes the field, a fixing device of railway freight car brake action pole processing specifically says so.
Background
The automatic derailing brake for railway wagon is an important component of wind brake for railway wagon and consists of pull ring, top beam, regulating rod, action rod, locking nut, elastic braking valve rod, valve body, etc. The principle of action is that the brake valve rod is broken or pushed off by a pull ring or a top beam by utilizing the relative displacement of the vehicle body and the wheel pair during derailment. The main air pipe is communicated with the passage of the atmosphere, so that the train has an emergency braking effect, and the driving safety is ensured. The requirements on the size and specification of the action rod of the main part are high, the requirements on the size and form and position tolerance are strict, and the machining precision of the action rod directly influences the assembling quality of the derailment automatic brake valve of the railway freight car.
The action rod adopts tubular product raw and other materials processing, accomplish product processing through turning, milling, drilling, wherein, to in 23.5 processing links in hole the most crucial, its associated size is very many, and influences derail braking automatic valve equipment clearance technical requirement, and current processing technology is simple and easy supplementary drilling frock, drilling processing, and its machining efficiency is low, and the machining size precision is difficult to be guaranteed, and the quality fluctuation easily appears, causes defective products or defective products to produce, influences vehicle operation safety.
The existing drilling device comprises a drilling machine with a V-shaped supporting sizing block, wherein an action rod is horizontally placed on the drilling machine during use, and the air pressure of an auxiliary weight is matched above the action rod to be clamped tightly. A drill die sleeve for positioning and righting the drill rod is arranged above the action rod, and the drill rod downwards passes through an inner hole of the drill die sleeve to drill the action rod below the action rod in the using process; when the drill rod is contacted with the inner side of the drill jig sleeve, the drill jig sleeve is abraded, so that the drill jig sleeve is frequently remade, resources are wasted, and the cost is increased; after the drill die sleeve is worn, the positioning precision of the drill rod is reduced, the deviation of the machining size precision is not found in time, and the product quality is difficult to ensure; and the V-shaped drilling machine is a radial drilling machine, so that the operation is complex and inconvenient, the labor intensity is high, the clamping auxiliary time is greatly consumed, and the production efficiency and the quality are influenced.
Disclosure of Invention
In view of the above, the utility model provides a fixing device for processing a brake action rod of a railway wagon, which aims to solve the problems that when the action rod is processed in the past, a drill jig sleeve for positioning a drill rod is frequently worn in the use process, and if the drill jig sleeve is not replaced in time, the positioning precision is reduced in processing, and the product quality is influenced; and the remaking and replacing of the drill jig sleeve need to consume resources and time, which affects the production efficiency and increases the production cost.
The utility model provides a fixing device of railway freight car brake action pole processing, include: an L-shaped fixed seat and a clamping mechanism;
one side of the support arm in the vertical direction of the L-shaped fixed seat, which is far away from the support arm in the horizontal direction of the L-shaped fixed seat, is connected with a main shaft of the machine tool through a connecting mechanism;
the L-shaped fixed seat is provided with a fixed hole in the horizontal direction supporting arm, and the fixed hole is used for inserting and fixing the bottom end of the action rod;
a supporting mechanism is detachably connected to a position, close to the top, of a support arm of the L-shaped fixed seat in the vertical direction, the supporting mechanism is movably connected with the clamping mechanism, and the supporting mechanism is used for fixing the clamping mechanism;
the clamping mechanism is located above the action rod and is used for being matched with the L-shaped fixed seat to clamp the action rod.
Preferably, the connection mechanism includes: a connecting column and a threaded pull rod;
one end of the connecting column is connected with a vertical supporting arm of the L-shaped fixed seat;
the other end of the connecting column is a Morse taper outer conical surface which is mutually matched with the Morse taper inner conical hole of the main shaft;
and a threaded hole is formed in the end face of the other end of the connecting column, and the threaded hole is detachably connected with a machine tool through the threaded pull rod.
Preferably, the clamping mechanism comprises: a compression bolt and a pressing block;
the compression bolt is movably connected with the supporting mechanism and can move up and down along the supporting mechanism;
the pressing block is arranged at the top of the action rod, and the pressing bolt is arranged at the top of the pressing block.
Preferably, the support mechanism includes: supporting a block;
the support block is connected with a support arm in the vertical direction of the L-shaped fixed seat through a bolt;
the support block is provided with a threaded hole, and the internal thread of the threaded hole is matched with the external thread of the compression bolt.
Preferably, the method further comprises the following steps: adjusting the gasket;
the body of the adjusting gasket is in a ring shape, the adjusting gasket is located between the top of the support arm of the L-shaped fixed seat in the horizontal direction and the action rod, and the bottom end of the action rod penetrates through the inner hole of the ring shape of the adjusting gasket.
The utility model discloses following beneficial effect has:
the utility model provides a fixing device for processing a brake action rod of a railway wagon, which directly fixes the action rod on a main shaft of a machine tool by arranging an L-shaped fixing seat and a clamping mechanism, does not need to use an original V-shaped supporting drilling machine, and can install a drill bit on a tailstock of the machine tool, thereby shortening the length of the drill bit and improving the stability of the drill bit; the drill jig sleeve used for guiding and righting the drill bit is not required to be arranged, so that the machining precision reduction caused by the abrasion of the drill jig sleeve can be prevented, the drill jig sleeve is not required to be frequently replaced, and the machining cost is saved.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
fig. 1 is a front view of a fixing device for processing a brake action rod of a railway wagon according to an embodiment of the present invention.
Fig. 2 is a plan view of the fixing device for processing the brake action rod of the railway wagon in the embodiment of the invention.
In the figure, 1-connecting column, 2-pressing bolt, 3-pressing block, 4-adjusting shim, 5-supporting block, 6-L type fixed seat and 7-action rod.
Detailed Description
The present invention will be described below based on examples, but it should be noted that the present invention is not limited to these examples. In the following detailed description of the present invention, certain specific details are set forth in detail. However, for parts not described in detail, those skilled in the art can fully understand the present invention.
Furthermore, those skilled in the art will appreciate that the drawings are provided for purposes of illustrating the objects, features, and advantages of the invention and are not necessarily drawn to scale.
Also, unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, the meaning of "includes but is not limited to".
Fig. 1 is a front view of a fixing device for processing a brake action rod of a railway wagon according to an embodiment of the present invention. Fig. 2 is a plan view of the fixing device for processing the brake action rod of the railway wagon in the embodiment of the invention. As shown in fig. 1 and 2, a fixing device for processing a brake action rod of a railway wagon comprises: an L-shaped fixed seat and a clamping mechanism; the side, far away from the support arm in the horizontal direction of the L-shaped fixed seat 6, of the support arm in the vertical direction of the L-shaped fixed seat 6 is connected with a machine tool spindle through a connecting mechanism; the L-shaped fixed seat 6 is provided with a fixed hole on the support arm in the horizontal direction, and the fixed hole is used for inserting and fixing the bottom end of the action rod 7; a supporting mechanism is detachably connected to a position, close to the top, of a support arm of the L-shaped fixed seat 6 in the vertical direction, the supporting mechanism is movably connected with the clamping mechanism, and the supporting mechanism is used for fixing the clamping mechanism; the clamping mechanism is positioned above the action rod 7 and is used for being matched with the L-shaped fixed seat 6 to clamp the action rod 7.
In the embodiment of the present invention, when the action lever 723.5 is processed in the diameter hole, the bottom end of the action lever 7 is inserted into the fixing hole from the top of the fixing hole, and the bottom end of the action lever 7 passes through the fixing hole. The action rod 7 is in a cylindrical structure with the diameter of the upper half part larger than that of the lower half part, and a convex edge is formed at the joint of the upper half part and the lower half part of the action rod 7; the aperture of the fixed hole is matched with the diameter of the lower half part of the action rod 7. When the bottom end of the action rod 7 passes through the fixing hole, the convex edge on the action rod 7 is clamped at the top of the fixing hole, so that the action rod 7 is prevented from falling downwards.
After the action rod 7 is located in the fixing hole of the L-shaped fixing seat 6, the supporting mechanism is connected to the supporting arm of the L-shaped fixing seat 6 in the vertical direction and close to the top, the clamping mechanism is connected with the supporting mechanism, at the moment, the clamping mechanism is located above the top of the action rod 7, and the clamping mechanism can move back and forth on the supporting mechanism in the direction close to or far away from the action rod 7. When the action rod 7 needs to be clamped, the clamping mechanism is controlled to move towards the direction close to the action rod 7 until the bottom of the clamping mechanism is contacted with the top of the action rod 7, and at the moment, the clamping mechanism and the support arm in the horizontal direction of the L-shaped fixed seat 6 are matched to clamp the action rod 7 between the clamping mechanism and the action rod, so that the fixed rod is fixed. After the action rod 7 is fixed, a drill bit arranged on the tailstock of the machine tool is started, and the action rod 7 in the positive direction of the main shaft is drilled until the action rod 7 is drilled through. After drilling is finished, the clamping mechanism is controlled to move towards the direction far away from the action rod 7, the supporting mechanism is separated from the L-shaped fixed seat 6, and the action rod 7 can be taken out.
In the present invention, the connecting mechanism includes: a connecting column 1 and a threaded pull rod; one end of the connecting column 1 is connected with a vertical supporting arm of the L-shaped fixed seat 6; an inner conical hole with Morse taper is formed in the machine tool spindle, and the other end of the connecting column 1 is an outer conical surface with Morse taper matched with the inner conical hole with Morse taper of the spindle; and a threaded hole is formed in the end face of the other end of the connecting column 1, and the threaded hole is detachably connected with a machine tool through the threaded pull rod.
In the embodiment of the present invention, the morse taper outer circumferential surface of the connecting column 1 is an outer conical surface whose diameter gradually decreases from one end of the connecting column 1 to the other end. When the connecting column is connected, the other end of the connecting column 1 is inserted into the inner conical hole which is formed in the machine tool spindle and matched with the outer circumferential surface of the connecting column 1 in shape, the connecting column 1 is connected with the machine tool spindle hole in a Morse taper fit mode, the axial positioning precision of the connecting column 1 can be improved, and the connecting column 1 is convenient to detach or install.
After the connecting column 1 is inserted into an inner conical hole of a main shaft of a machine tool, a threaded hole is formed in the end face of the other end of the connecting column 1, the inner shape of the threaded hole is matched with the external thread of the threaded pull rod, one end of the threaded pull rod is rotatably inserted into the threaded hole, so that the threaded pull rod is connected with the connecting column 1, the other end of the threaded pull rod penetrates through the machine tool and penetrates out of the end of the machine tool, the other end of the threaded pull rod is fixed to the end of the machine tool through a nut, and the connecting column 1 cannot be separated from the main shaft.
In the present invention, the clamping mechanism includes: a compression bolt 2 and a pressing block 3; the compression bolt 2 is movably connected with the supporting mechanism, and the compression bolt 2 can move up and down along the supporting mechanism; the pressing block 3 is arranged at the top of the action rod 7, and the pressing bolt 2 is arranged at the top of the pressing block 3.
In the embodiment of the present invention, the body of the pressing block 3 is a cylinder. The compression bolt 2 is movably connected with the supporting mechanism, when the action rod 7 is clamped, the compression bolt 2 rotates to move downwards, namely to the direction close to the action rod 7, and when the bottom end of the action rod 7 is contacted with the top of the pressing block 3, the distance between the compression bolt 2 and the horizontal supporting arm of the L-shaped fixed seat 6 is shortened, so that the action rod 7 and the pressing block 3 between the two are clamped. Wherein, briquetting 3 is used for preventing when clamp bolt 2 is rotatory, and the bottom leads to action 7 top wearing and tearing to take place with action 7 top direct contact.
In the present invention, the support mechanism includes: a support block 5; the support block 5 is connected with the support arm in the vertical direction of the L-shaped fixing seat 6 through a bolt, a threaded hole is formed in the support block 5, and internal threads of the threaded hole are matched with external threads of the compression bolt 2.
In the embodiment of the present invention, one side of the supporting block 5 is connected to the vertical arm of the L-shaped fixing base 6, the supporting block 5 is located at one side of the vertical arm of the L-shaped fixing base 6 close to the horizontal arm, and the supporting block 5 is located at the top of the vertical arm of the L-shaped fixing base 6. When the clamping device is used, the bottom end of the pressing bolt 2 is inserted into the threaded hole from the upper side of the threaded hole of the support block 5, the pressing bolt 2 is rotated clockwise, and the pressing bolt 2 gradually moves downwards until the bottom of the pressing bolt contacts with the top of the pressing block 3 to clamp the action rod 7. When the support block 5 is installed, the support block is required to be perpendicular to the support arm in the vertical direction of the L-shaped fixed seat 6 and parallel to the support arm in the horizontal direction of the L-shaped fixed seat 6, so that the action rod 7 is easy to clamp and align, and the size precision of a drilled hole is ensured.
The utility model discloses in, still include: a spacer 4 is adjusted; the body of adjusting shim 4 is ring shape, adjusting shim 4 is in between 6 horizontal direction support arm tops of L type fixing base and action bars 7, the bottom of action bars 7 passes adjusting shim 4 the annular hole of circle.
The embodiment of the utility model provides an in, action 7 bottom passes the adjusting shim 4 at the top of L type fixing base 6 and the fixed orifices of L type fixing base 6 in proper order, the bottom and the 4 top contacts of adjusting shim on the protruding edge on action 7. The adjusting shim 4 is used for adjusting the height position of the action rod 7 in the L-shaped fixed seat 6, so that the punching position of the action rod 7 can be adjusted without adjusting the L-shaped fixed seat 6 or the position of a drill bit; if the position of action bars 7 is too low, through setting up a plurality of superimposed adjusting shim 4, just can adjust action bars 7 height position. In addition, the adjusting gasket 4 can prevent the L-shaped fixed seat 6 from being abraded due to the fact that the action rod 7 is in direct contact with the L-shaped fixed seat 6 for a long time during machining; the L-shaped fixed seat 6 is worn to cause the position of the action rod 7 to be lowered, so that the punching position is deviated; and frequently change L type fixing base 6 and be troublesome and can increase manufacturing cost, through adjusting shim 4 and action pole 7 contact, after adjusting shim 4 takes place slight wearing and tearing or uses a period, can conveniently change adjusting shim 4 at any time.
The adjusting shim 4 is a flat pad with two polished top and bottom surfaces, the requirement on the thickness dimension precision is high, the dimension of 25 +/-0.05 mm needs to be ensured, and the technical requirement on the assembly clearance of the whole machine is ensured.
In the embodiment of the utility model, when in use, the L-shaped fixed seat 6 is arranged on the main shaft of the machine tool through the connecting column 1 and the threaded pull rod, and the connecting column 1 and the main shaft of the machine tool adopt Morse taper tail connection, thereby powerfully ensuring the axial positioning precision; the bottom end of an action rod 7 to be processed respectively penetrates through the adjusting gasket 4 and the fixing hole; the pressing block 3 is placed at the top of the action rod 7, so that the positioning precision in the direction vertical to the main shaft is ensured; then the compression bolt 2 is screwed to the support block 5 through the threaded hole, the compression bolt 2 moves downwards to the top of the pressing block 3 and is matched with the L-shaped fixed seat 6 to clamp the action rod 7, so that firm clamping is ensured, and loosening is prevented; after clamping alignment is finished, starting the machine tool, and shaking a drill bit at the tailstock of the machine tool to drill the action rod 7 in the positive direction of the main shaft until the action rod is drilled through; after drilling is finished, scrap irons on the adjusting gasket 4 and the supporting block 5 need to be cleaned up, so that subsequent workpiece positioning and processing are prevented from being influenced.
The utility model discloses a turning location processing technology has replaced the supplementary drilling technology of wind pressure, and production is more high-efficient, greatly reduced operator's production intensity of labour, reduced production assistance time, improved the processingquality and the dimensional requirement of product, satisfied reliability, convenience and security, can accord with the technical requirement of drawing completely, and is efficient, frock low in manufacturing cost, reasonable in design, durable, do benefit to the maintenance.
The above-mentioned embodiments are merely embodiments for expressing the invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications, substitutions, improvements, etc. can be made, and all of them belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (5)
1. A fixing device for processing a brake action rod of a railway wagon is characterized by comprising: an L-shaped fixed seat and a clamping mechanism;
the side, far away from the support arm in the horizontal direction of the L-shaped fixed seat (6), of the support arm in the vertical direction of the L-shaped fixed seat (6) is connected with a main shaft of the machine tool through a connecting mechanism;
the L-shaped fixed seat (6) is provided with a fixed hole on a horizontal supporting arm, and the fixed hole is used for inserting and fixing the bottom end of the action rod (7);
a support mechanism is detachably connected to a position, close to the top, of a support arm of the L-shaped fixed seat (6) in the vertical direction, the support mechanism is movably connected with the clamping mechanism, and the support mechanism is used for fixing the clamping mechanism;
the clamping mechanism is positioned above the action rod (7) and is used for being matched with the L-shaped fixed seat (6) to clamp the action rod (7).
2. A railway wagon brake application rod machining fixture as claimed in claim 1, wherein the connecting mechanism comprises: a connecting column (1) and a threaded pull rod;
one end of the connecting column (1) is connected with a vertical supporting arm of the L-shaped fixed seat (6);
an inner conical hole with Morse taper is formed in the machine tool spindle, and the other end of the connecting column (1) is an outer conical surface with Morse taper matched with the inner conical hole with Morse taper of the spindle;
and a threaded hole is formed in the end face of the other end of the connecting column (1), and the threaded hole is detachably connected with a machine tool through the threaded pull rod.
3. A railway freight car brake lever machining fixture as claimed in claim 1, wherein the clamp mechanism includes: a compression bolt (2) and a pressing block (3);
the compression bolt (2) is movably connected with the supporting mechanism, and the compression bolt (2) can move up and down along the supporting mechanism;
the pressing block (3) is arranged at the top of the action rod (7), and the pressing bolt (2) is arranged at the top of the pressing block (3).
4. A railway wagon brake application rod machining fixture as claimed in claim 3, wherein the support mechanism comprises: a support block (5);
the supporting block (5) is connected with a supporting arm of the L-shaped fixed seat (6) in the vertical direction through a bolt;
the support block (5) is provided with a threaded hole, and the internal thread of the threaded hole is matched with the external thread of the compression bolt (2).
5. A railway wagon brake application rod machining fixture as defined in any one of claims 1-4, further comprising: an adjustment pad (4);
the body of adjusting shim (4) is ring shape, adjusting shim (4) are in between the top of L type fixing base (6) horizontal direction support arm and action bars (7), the bottom of action bars (7) passes adjusting shim (4) the annular hole of circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220970025.4U CN217122554U (en) | 2022-04-25 | 2022-04-25 | Fixing device for processing brake action rod of railway wagon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220970025.4U CN217122554U (en) | 2022-04-25 | 2022-04-25 | Fixing device for processing brake action rod of railway wagon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217122554U true CN217122554U (en) | 2022-08-05 |
Family
ID=82651042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220970025.4U Active CN217122554U (en) | 2022-04-25 | 2022-04-25 | Fixing device for processing brake action rod of railway wagon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217122554U (en) |
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2022
- 2022-04-25 CN CN202220970025.4U patent/CN217122554U/en active Active
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