Core withdrawing device for gauge rod sleeve machining

Abstract

The utility model discloses a core withdrawing device for processing a gauge rod sleeve, which is characterized in that a sliding rail is arranged on the upper surface of a workbench, a sliding table is matched with the sliding rail in a sliding connection manner, and a clamp is arranged on the sliding table; the clamp comprises a lower clamping seat and an upper clamping seat which can be opened and closed relatively, the lower clamping seat is fixed with the sliding table, the upper clamping seat can be driven by an air cylinder to move up and down and be locked, and the air cylinder is connected with a foot switch located below the workbench; a clamping cavity used for clamping a sleeve is formed between the lower clamping seat and the upper clamping seat, a plurality of clamping strips made of rubber are arranged on the inner wall of the clamping cavity, and the multiple clamping strips are annularly arranged at intervals; a rotating motor is further fixed to the upper surface of the workbench, a motor shaft of the rotating motor faces the clamp and is coaxial with the clamping cavity, and an inner hole clamping head matched with the sleeve inner core is fixed to the motor shaft. The mold core can be automatically taken out after the sleeve is subjected to injection molding, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of railway fittings processing equipment, in particular to a core-retracting device used for processing a gauge rod sleeve. Background Art

[0002] In order to maintain the gauge between the two rails in the railway track circuit section without affecting the insulation between them, it is often necessary to install insulating gauge rods in the curved sections and switch sections of the railway. The insulating gauge rod is connected together by two tie rods between the sleeves. The sleeve includes an outer sleeve and an injection-molded insulating core. The two ends of the insulating core have threaded cavities, and the two tie rods are connected as a whole through the two threaded cavities. In order to facilitate the control of the quality of the gauge rod insulation layer and to facilitate the replacement of the sleeve separately, the newly released railway gauge rod standard changes the connection method between the sleeve and the rod body from injection molding to post-assembly. The sleeve is changed to separate injection molding. When processing the sleeve injection molding, it is necessary to insert a mold core with external threads into the sleeve. By injecting insulating material between the mold core and the outer sleeve, the mold core is withdrawn after cooling and molding, and finally the sleeve is obtained.

[0003] In the sleeve processing technology, the mold core needs to be manually removed, which has low work efficiency and high labor costs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a core-retracting device for machining a gauge rod sleeve.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A core-retracting device for machining a gauge rod sleeve comprises a workbench, characterized in that the upper surface of the workbench is provided with a slide rail, a slide is slidably engaged with the slide rail, and a clamp is provided on the slide; the clamp comprises a lower clamp seat and an upper clamp seat which can open and close relatively, the lower clamp seat is fixed to the slide, the upper clamp seat can move up and down and be locked by being driven by a cylinder, and the cylinder is connected to a foot switch located under the workbench; a clamping cavity for clamping the sleeve is formed between the lower clamp seat and the upper clamp seat, the inner wall of the clamping cavity is provided with a plurality of clamp strips made of rubber material, and the plurality of clamp strips are arranged circumferentially at intervals; a rotating motor is also fixed to the upper surface of the workbench, the motor shaft of the rotating motor faces the clamp and is coaxially arranged with the clamping cavity, and an inner hole clamp head matching the inner core of the sleeve is fixed on the motor shaft.

[0007] A further technical solution is that the slide rail includes two parallel tracks, the outer side wall of the slide rail has a recessed slide track, four pulleys arranged in a rectangular shape are fixed on the slide platform, and two pulleys on the same side are slidably connected in the corresponding slide track.

[0008] A further technical solution is that a baffle is fixed on one end of the workbench away from the rotating motor, and the baffle is arranged vertically upward.

[0009] A further technical solution is that a bracket is fixed on the slide, and the bracket includes a vertical guide plate and a fixed plate horizontally fixed to the top of the guide plate, the cylinder is fixed to the fixed plate, the cylinder rod of the cylinder passes downward through the fixed plate and is fixed to the upper clamp seat, and sliders are fixed on both sides of the upper clamp seat, and the sliders are fitted with the lower sliding contact of the guide plate.

[0010] A further technical solution is that the sliding block is provided with a sliding groove matching the thickness of the guide plate, so that the sliding block is slidably connected to both sides of the guide plate.

[0011] A further technical solution is that a buffer rod capable of floating up and down is provided on the top surface of the lower clamp seat, and the buffer rod can be completely moved into the lower clamp seat after being pressed down by the upper clamp seat.

[0012] A further technical solution is that the buffer rod is in the shape of a stepped rod and is located in the stepped hole of the lower clamp seat, and a buffer spring is provided at the bottom of the buffer rod.

[0013] The beneficial effects of adopting the above technical solution are:

[0014] When the device is in use, the sleeve is clamped by a clamp, and then the slide is pushed close to the driving motor, so that the inner hole clamp is inserted into the inner core of the sleeve and clamped with it, and the rotating motor is started. The rotating motor drives the mold core to rotate through the inner hole clamp. At the same time, the slide clamps the sleeve body and moves backward, and finally the mold core is taken out from the sleeve body, thereby realizing the automatic removal of the mold core after the sleeve is injection molded, and improving the processing efficiency.

[0015] Circumferentially spaced clamping strips are fixed to the inner wall of the clamping cavity of the clamp. The clamping strips are made of rubber material. When the clamp is closed, the clamping strips are squeezed and deformed, which increases the friction with the sleeve member to prevent the sleeve from rotating, thereby avoiding deformation of the sleeve outer shell due to stress.

[0016] In addition, the upper clamp seat is raised and lowered by a cylinder to realize the opening and closing of the clamp, and the switch for controlling the start of the cylinder is set as a foot switch, which is convenient for the staff to operate and is conducive to the clamping and removal of the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a main structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the clamp in the utility model. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] like Figure 1 to Figure 3 As shown, a core-retracting device for gauge rod sleeve processing includes a workbench 100. A movable caster with a self-locking structure is provided at the bottom of the workbench 100 to facilitate moving the device to a suitable workstation. A slide rail 10 is provided on the upper surface of the workbench 100. A slide table 20 is slidably connected to the slide rail 10. The slide rail 10 includes two parallel tracks. A recessed slideway is provided on the outer side wall of the slide rail 10. Four pulleys arranged in a rectangular shape are fixed on the slide table 20. The two pulleys on the same side are slidably connected in the corresponding slideway, so that the slide table 20 can slide freely along the slide rail 10.

[0024] A fixture 30 and a bracket are provided on the slide 20. The fixture 30 includes a lower clamp seat 31 and an upper clamp seat 32 that can be relatively opened and closed. The lower clamp seat 31 is fixed to the slide 20. The bracket includes a vertical guide plate 35 and a fixing plate 36 fixed horizontally to the top of the guide plate 35. A cylinder 33 is fixed to the fixing plate 36. The cylinder 33 rod of the cylinder 33 passes downward through the fixing plate 36 and is fixed to the upper clamp seat 32. The upper clamp seat 32 can be moved up and down and locked by the cylinder 33. The cylinder 33 is connected to a foot switch 34 located below the workbench 100. The upper clamp seat 32 is controlled to rise and fall by the cylinder 33 to realize the opening and closing of the fixture 30. The switch that controls the activation of the cylinder 33 is set as a foot switch 34, which is convenient for the staff to operate and is conducive to the clamping and removal of the sleeve.

[0025] A clamping cavity for clamping the sleeve is formed between the lower clamping seat 31 and the upper clamping seat 32. The inner wall of the clamping cavity is provided with a plurality of clamping strips 38 made of rubber material, which are arranged circumferentially at intervals. The clamping strips 38 arranged circumferentially at intervals are fixed on the inner wall of the clamping cavity of the clamp 30. The clamping strips 38 are made of rubber material. When the clamp 30 is closed, the clamping strips 38 are squeezed and deformed, that is, friction with the sleeve is added to prevent the sleeve from rotating, thereby avoiding deformation of the sleeve outer shell under stress.

[0026] In order to make the upper clamping seat 32 rise and fall more smoothly, sliders 37 are fixed on both sides of the upper clamping seat 32, and the sliders 37 slide up and down with the guide plate 35. Specifically, the slider 37 has a slide groove matching the thickness of the guide plate 35, so that the slider 37 slides on both sides of the guide plate 35.

[0027] A buffer rod 39 capable of floating up and down is provided on the top surface of the lower clamp seat 31. The buffer rod 39 is in the shape of a stepped rod and is located in the stepped hole of the lower clamp seat 31. A buffer spring 391 is provided at the bottom of the buffer rod 39. The buffer rod 39 can be completely moved into the lower clamp seat 31 after being pressed down by the upper clamp seat 32. The setting of the buffer rod 39 can reduce the impact force of the upper clamp seat 32 on the sleeve when the clamp 30 is closed, thereby preventing the sleeve from being deformed by force.

[0028] A rotating motor 40 is also fixed on the upper surface of the workbench 100. The motor shaft of the rotating motor 40 faces the fixture 30 and is coaxially arranged with the clamping cavity. An inner hole chuck 41 matching the inner core of the sleeve is fixed on the motor shaft. The inner hole chuck 41 can be in the form of an elastic chuck in the prior art.

[0029] When the device is in use, the sleeve is clamped by the clamp 30, and then the slide 20 is pushed close to the driving motor, so that the inner hole clamp 41 extends into the inner core of the sleeve and clamps it, and the rotating motor 40 is started. The rotating motor 40 drives the mold core to rotate through the inner hole clamp 41. At the same time, the slide 20 automatically clamps the sleeve body and moves backward, and finally the mold core is taken out from the sleeve body, thereby realizing the automatic removal of the mold core after the sleeve is injected and improving the processing efficiency.

[0030] In order to prevent the slide 20 from falling off the slide rail 10 backwards, a baffle 50 is fixed to one end of the workbench 100 away from the rotary motor 40 . The baffle 50 is vertically arranged upward to block the slide 20 .

[0031] The above are only preferred embodiments of the present invention. Any simple modification, deformation and equivalent replacement made by anyone to the present invention according to the content of the present invention shall fall within the protection scope of the present invention.

Claims

1. A core-removing device for gauge rod sleeve processing, comprising a workbench (100), characterized in that: The upper surface of the workbench (100) is provided with a slide rail (10), a slide table (20) is slidably connected to the slide rail (10), and a clamp (30) is provided on the slide table (20); the clamp (30) comprises a lower clamp seat (31) and an upper clamp seat (32) which can be opened and closed relative to each other, the lower clamp seat (31) is fixed to the slide table (20), and the upper clamp seat (32) can be moved up and down and locked by being driven by a cylinder (33), and the cylinder (33) is connected to a lower portion of the workbench (100). A foot switch (34) is provided on the side of the workbench (100); a clamping cavity for clamping the sleeve is formed between the lower clamping seat (31) and the upper clamping seat (32); a plurality of rubber clamping strips (38) are provided on the inner wall of the clamping cavity, and the plurality of clamping strips are arranged in an annular manner; a rotating motor (40) is also fixed on the upper surface of the workbench (100); the motor shaft of the rotating motor (40) faces the clamp (30) and is coaxially arranged with the clamping cavity; an inner hole clamp (41) matching the inner core of the sleeve is fixed on the motor shaft.

2. The core-retracting device according to claim 1, characterized in that: The slide rail (10) comprises two parallel tracks, the outer side wall of the slide rail (10) is provided with a recessed slide track, and four pulleys arranged in a rectangular shape are fixed on the slide platform (20), and two pulleys on the same side are slidably connected in the corresponding slide track.

3. The core-retracting device according to claim 1, characterized in that: A baffle (50) is fixed to one end of the workbench (100) away from the rotating motor (40), and the baffle (50) is arranged vertically upward.

4. The core-retracting device according to claim 1, characterized in that: A bracket is fixed on the slide (20), and the bracket includes a vertical guide plate (35) and a fixing plate (36) fixed horizontally to the top of the guide plate (35). The cylinder (33) is fixed on the fixing plate (36). The cylinder (33) rod of the cylinder (33) passes downward through the fixing plate (36) and is fixed to the upper clamping seat (32). Slide blocks (37) are fixed on both sides of the upper clamping seat (32), and the slide blocks (37) are slidably engaged with the guide plate (35) up and down.

5. The core-retracting device according to claim 4, characterized in that: The slide block (37) has a slide groove that matches the thickness of the guide plate (35), so that the slide block (37) is slidably connected to both sides of the guide plate (35).

6. The core-retracting device according to claim 1, characterized in that: A buffer rod (39) capable of floating up and down is provided on the top surface of the lower clamp seat (31); the buffer rod (39) can be completely moved into the lower clamp seat (31) after being pressed down by the upper clamp seat (32).

7. The core-retracting device according to claim 6, characterized in that: The buffer rod (39) is in the shape of a stepped rod and is located in the stepped hole of the lower clamping seat (31). A buffer spring (391) is provided at the bottom of the buffer rod (39).

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