CN218746315U - Fixed frock of tram switch rail processing - Google Patents
Fixed frock of tram switch rail processing Download PDFInfo
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- CN218746315U CN218746315U CN202223082903.8U CN202223082903U CN218746315U CN 218746315 U CN218746315 U CN 218746315U CN 202223082903 U CN202223082903 U CN 202223082903U CN 218746315 U CN218746315 U CN 218746315U
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- bottom mounting
- switch rail
- screw
- end dress
- plate
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Abstract
The utility model discloses a fixed frock of tram switch rail processing, relate to the technical field of railway switch rail, including end dress board, end dress strip and fixed plate, the bottom of end dress board is equipped with a counter sink, the inside stopper in counter sink is equipped with screw one, end dress strip is equipped with a pair of and bilateral symmetry welds the downside in end dress board, the upper portion of end dress strip is equipped with one and clamps the groove, the upside that clamps the groove clamps the clamp hoop of U type, the middle part that compresses tightly the hoop is vertical has been taken screw two, the fixed plate is equipped with a plurality of and evenly distributed in the below of two end dress strips, the upside of fixed plate is equipped with the sliding groove, sliding groove sliding connection has a pair of sliding block, sliding block's top is equipped with screw hole one, the screw two threaded connection that are located the homonymy locates in sliding block's screw hole one. The utility model discloses optimize the clamping mode: the bottom surface of the switch rail steel blank is firstly subjected to drilling work and then is locked and fixed with the bottom mounting plate through the bolt pair, so that the material of the switch rail steel blank cannot be influenced, and the bottom mounting plate can be recycled.
Description
Technical Field
The utility model relates to a technical field of railway switch rail, concretely relates to fixed frock of tram switch rail processing.
Background
The switch rail is a consumable part in a turnout, and in order to prolong the service life of the switch rail, the switch rail of the tramcar turnout is formed by milling high-wear-resistant alloy steel billets. The steel billet is in a slender cuboid structure and is not provided with a rail head, a rail bottom and a rail web like a common steel rail. Therefore, when milling and clamping, a workpiece is fixed on the auxiliary bottom plate in a certain mode, and the auxiliary bottom plate is adsorbed on a workbench of a machine tool through magnetic force.
An early clamping mode: the periphery of the switch rail raw material is fixed on the auxiliary bottom plate in a spot welding mode. The disadvantages are as follows:
(1) when the welding current is unstable, the performance of the alloy steel material is easily influenced at the welding position, and the switch rail is pulled to reciprocate, so that the risk of fatigue fracture exists.
(2) Due to the adoption of the welding mode, the machining allowance needs to be properly increased around the raw material, so that the raw material cost and the machining cost of the workpiece are increased.
(3) In a spot welding mode, each main shaft can only produce 1 switch rail at a time, and the efficiency is low.
(4) After 1 switch rail is machined, welding spots on the upper surface of the auxiliary bottom plate need to be machined on a machine tool, and after each auxiliary bottom plate is used for about 20 times, the auxiliary bottom plate cannot be used due to the fact that the thickness of the auxiliary bottom plate is reduced. The auxiliary base plate is not only not low in cost, but also occupies a large machine tool time each time the upper surface is polished.
Disclosure of Invention
An object of the utility model is to provide a fixed frock of tram switch rail processing to solve the above-mentioned defect that leads to among the prior art.
The utility model provides a fixed frock of tram switch rail processing, includes end dress board, end dress strip and fixed plate, end dress board level and front and back orientation setting, the bottom of end dress board is equipped with a column evenly distributed's counter sink, the vertical upwards stopper in inside of counter sink is equipped with screw one, end dress strip is equipped with a pair of and bilateral symmetry welds the downside at end dress board, the upper portion of end dress strip is equipped with a column evenly distributed's the groove that clamps, clamp the groove and clamp the clamp of U type for the rectangle structure and clamp its upside, the vertical screw two of putting in the middle part of clamp, the fixed plate is equipped with a plurality of and evenly distributed in the below of two end dress strips, the upside of fixed plate is equipped with the slide-mounting groove of "T" type, slide-mounting inslot sliding connection has a pair of "T" type slide-mounting piece, slide-mounting piece's top is equipped with screw hole one, and the screw two threaded connection that are located the homonymy are in slide-mounting piece are in screw hole one department.
Preferably, a flat washer is sleeved on the second screw above the pressing hoop.
Preferably, the bottom of the fixing plate is provided with a second threaded hole in a rectangular array.
Compared with the prior art, the utility model has the advantages of it is following:
the clamping mode is optimized: firstly, the bottom surface of the switch rail steel blank is drilled, and then the switch rail steel blank is locked and fixed with the bottom mounting plate through the bolt pair. The advantages are that: (1) the material itself is not affected, and the safety is higher. (2) Each main shaft can produce a pair of switch rails at one time, and the efficiency is doubled. (3) The bottom plate can be recycled.
Drawings
Fig. 1 is a schematic diagram of the overall three-dimensional structure of the present invention.
Fig. 2 is a schematic structural diagram of the whole explosion of the present invention.
Fig. 3 and 4 are schematic structural views of the bottom mounting plate and the bottom mounting strip of the present invention.
Fig. 5 is a schematic structural view of the clamp, the second screw and the flat washer of the present invention.
Fig. 6 and 7 are schematic structural diagrams of the fixing plate and the slide-mounting block in the present invention.
Fig. 8 is a schematic structural view of a tongue rail blank according to the present invention.
Wherein:
11-bottom mounting plate; 11 a-a counterbore; 12-bottom mounting of strips; 12 a-a clamping groove; 13-screw one; 14-a clamp hoop; 15-screw II; 16-a flat washer; 17-a fixing plate; 17 a-a slide-fit groove; 17 b-a first threaded hole; 18-a slide block; 18 a-threaded hole two; 19-point rail steel blank; 19 a-threaded hole three.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1 to 8, the fixture for processing and fixing the switch rail of the tramcar comprises a bottom mounting plate 11, bottom mounting strips 12 and a fixing plate 17, wherein the bottom mounting plate 11 is horizontally arranged in a front-back direction, a row of uniformly distributed counter bores 11a are formed in the bottom of the bottom mounting plate 11, first screws 13 are vertically upwards inserted into the counter bores 11a, the bottom mounting strips 12 are provided with a pair of counter bores which are welded to the lower side of the bottom mounting plate 11 in a bilateral symmetry manner, a row of uniformly distributed clamping grooves 12a are formed in the upper portion of the bottom mounting strips 12, the clamping grooves 12a are of a rectangular structure and are clamped with U-shaped clamp hoops 14 on the upper side of the clamping grooves, second screws 15 are vertically placed in the middle portions of the clamp hoops 14, the fixing plate 17 is provided with a plurality of screw holes 17b which are uniformly distributed below the two bottom mounting strips 12, a t-shaped sliding groove 17a is formed in the upper side of the fixing plate 17, a pair of t-shaped sliding blocks 18 are slidably connected in the sliding groove 17a pair of t-shaped sliding blocks 18, a threaded hole 17b which is positioned at the same side of the sliding blocks 18 b.
In this embodiment, the second screw 15 is sleeved with a flat washer 16 above the pressing hoop 14. The contact area between the upper end of the second thread 15 and the upper side of the pressing hoop 14 is increased by adding the flat washer 16.
In this embodiment, the bottom of the fixing plate 17 is provided with a second threaded hole 18a in a rectangular array. Through processing the second threaded hole 18a in the fixing plate 17, the fixing plate 17 is conveniently fixed to a processing platform of a milling machine.
This kind of fixed frock of tram switch rail processing when practical application:
step 1: fixing a plurality of fixing plates 17 to a processing platform of a milling machine by bolts;
step 2: transferring the bottom mounting strips 12 to the upper sides of a plurality of fixing plates 17, and then installing the bottom mounting strips 12 on the fixing plates 17 through two rows of screws 15 and pressing hoops 14;
and step 3: processing a row of uniformly distributed threaded holes III 19a on the switch rail steel blank 19 through a drilling machine, transferring the switch rail steel blank 19 to the upper side of the bottom mounting plate 11, and mounting the switch rail steel blank 19 on the bottom mounting plate 11 through a row of screws I13;
and 4, step 4: milling the upper half part of the point rail steel blank 19 by a milling machine;
and 5: the separation of the switch rail steel blank 19 and the bottom mounting plate 11 is realized by removing a row of screws I13;
step 6: and (3) using the bottom mounting plate 11 of the other type and also using screws for fixing, and continuously processing the lower half part of the point rail steel blank 19.
The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.
Claims (3)
1. The utility model provides a frock is fixed in tram switch rail processing which characterized in that: the novel bottom-mounted bolt fastening device comprises a bottom mounting plate (11), bottom mounting strips (12) and a fixing plate (17), wherein the bottom mounting plate (11) is horizontally arranged and is arranged in the front-back direction, a row of uniformly distributed counter bores (11 a) are formed in the bottom of the bottom mounting plate (11), screws (13) are vertically upwards plugged in the counter bores (11 a), the bottom mounting strips (12) are provided with a pair of compression hoops (14) welded to the lower side of the bottom mounting plate (11) in a bilateral symmetry mode, a row of uniformly distributed clamping grooves (12 a) are formed in the upper portion of the bottom mounting strips (12), the clamping grooves (12 a) are of a rectangular structure and are clamped with U-shaped compression hoops (14) on the upper sides of the compression hoops, screws (15) are vertically placed in the middle of the compression hoops (14), the fixing plate (17) is provided with a plurality of sliding grooves (17 a) which are uniformly distributed below the two bottom mounting strips (12), the upper side of the fixing plate (17) is provided with a slide block type sliding groove (17 a), a pair of slide blocks (18) are slidably connected to the screw holes (18) at the top of the screw holes (18 b), and a screw thread hole (17 b) is arranged on the same side of the screw hole (18).
2. The fixture for machining and fixing the switch rail of the tram according to claim 1, characterized in that: and a flat gasket (16) is sleeved on the second screw (15) above the pressing hoop (14).
3. The fixture for machining and fixing the switch rail of the tram according to claim 1, characterized in that: and a second threaded hole (18 a) in a rectangular array is formed in the bottom of the fixing plate (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223082903.8U CN218746315U (en) | 2022-11-21 | 2022-11-21 | Fixed frock of tram switch rail processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223082903.8U CN218746315U (en) | 2022-11-21 | 2022-11-21 | Fixed frock of tram switch rail processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218746315U true CN218746315U (en) | 2023-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223082903.8U Active CN218746315U (en) | 2022-11-21 | 2022-11-21 | Fixed frock of tram switch rail processing |
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| Country | Link |
|---|---|
| CN (1) | CN218746315U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117400019A (en) * | 2023-11-14 | 2024-01-16 | 芜湖中铁科吉富轨道有限公司 | Tram switch low abrasion switch rail milling equipment |
| CN117400019B (en) * | 2023-11-14 | 2024-05-10 | 芜湖中铁科吉富轨道有限公司 | Tram switch low abrasion switch rail milling equipment |
-
2022
- 2022-11-21 CN CN202223082903.8U patent/CN218746315U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117400019A (en) * | 2023-11-14 | 2024-01-16 | 芜湖中铁科吉富轨道有限公司 | Tram switch low abrasion switch rail milling equipment |
| CN117400019B (en) * | 2023-11-14 | 2024-05-10 | 芜湖中铁科吉富轨道有限公司 | Tram switch low abrasion switch rail milling equipment |
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