Clamping device for steel rail drilling machine

Abstract

The utility model relates to a clamping device for a steel rail drilling machine, which comprises a clamping seat provided with a connecting arm; the pressing plates are arranged on the two sides of the bottom of the clamping base. The clamping swing rod is rotationally arranged on the connecting arm, and one end of the clamping swing rod is opposite to the pressing plate. The clamping shaft is rotationally arranged at the other end of the clamping swing rod and provided with a clamping threaded hole. The clamping screw rod is arranged on the clamping threaded hole; the clamping head is rotationally arranged at one end of the clamping screw rod; the locking shaft is arranged on the clamping head; the locking rod is arranged on the clamping seat and is provided with a locking groove; the locking sleeve is arranged on the locking rod in a sliding manner and is rotationally connected with the locking shaft; the handle is movably arranged at the other end of the clamping screw rod; when the steel rail is clamped, the locking shaft is inserted into the locking groove, and one end of the clamping swing rod and the pressing plate are clamped on the two sides of the steel rail. When the steel rail is loosened, the locking sleeve and the clamping head are located at the bottom of the locking rod, and one end of the clamping swing rod and the two sides, away from the steel rail, of the pressing plate are clamped. The clamping device is very short in locking stroke, can be quickly locked and loosened, enables the opening angle to be larger, and is convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rail drilling machine, especially a clamping device for rail drilling machine. BACKGROUND

[0002] The rail hole turning machine is provided with a clamping device for convenience of drilling, such as the clamping mechanism disclosed in CN2637045Y, which comprises a positioning device, a supporting device and a clamping swing arm. The supporting part on the arm body of the clamping swing arm is connected with the supporting device through a shaft. The lower end of the clamping swing arm is provided with a contact part. The upper end of the clamping swing arm is provided with a clamping handle. The middle of the clamping handle is provided with a locking rod. The rear half of the locking rod is provided with a thread. The upper end of the clamping swing arm is provided with a groove capable of accommodating the left and right rotation of the locking rod. A shaft penetrates the groove. A threaded hole penetrates the shaft horizontally. The locking rod penetrates the threaded hole of the shaft. Although the structure is simple, the stroke of the locking rod is long during use, and the time required for clamping and loosening is still relatively long. SUMMARY

[0003] To solve the above problems, the utility model provides a kind of clamping device for rail drilling machine, and specific technical solutions are as follows:

[0004] A kind of clamping device for rail drilling machine, comprising: clamping seat, it is equipped with connecting arm;Pressing plate, it is equipped in the both sides of the bottom of the clamping seat;Clamping swing rod, it is rotatably arranged on the connecting arm, one end is opposite to the pressing plate;Clamping shaft, it is rotatably arranged on the other end of the clamping swing rod, and it is equipped with clamping screw hole;Clamping screw rod, it is arranged on the clamping screw hole;Clamping head, it is rotatably arranged on one end of the clamping screw rod;Locking shaft, it is arranged on the clamping head;Locking rod, it is arranged on the clamping seat, and top is equipped with locking groove;Locking sleeve, it is slidably arranged on the locking rod, and it is rotatably connected with the locking shaft, so that the locking sleeve slides up and down along the locking rod;And handle, it is movably arranged on the other end of the clamping screw rod;Wherein, when clamping rail, the locking shaft is inserted in the locking groove, one end of the clamping swing rod and the pressing plate are clamped on the both sides of rail;When loosening rail, the locking sleeve and the clamping head are located at the bottom of the locking rod, one end of the clamping swing rod and the pressing plate are away from the both sides of rail.

[0005] Preferably, the locking rod is rotatably arranged on the clamping seat, and is provided with a clamping surface opposite to the clamping seat.

[0006] Further, the clamping seat is provided with a mounting groove, and the locking rod is movably inserted into the mounting groove.

[0007] Preferably, the locking sleeve comprises a U-shaped locking body and an anti-disengagement plate arranged on the locking body.

[0008] Preferably, it further comprises: a handle arranged on the top of the clamping seat.

[0009] Preferably, the clamping seat is further provided with a connecting rod connected with the pressing plate.

[0010] Preferably, the clamping device further comprises a pressing wheel rotatably arranged at the end of the clamping swing rod and oppositely arranged with the pressing plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The clamping device for the rail drilling machine provided by the utility model realizes locking of clamping through the locking shaft and the locking groove, and realizes loosening through the locking sleeve and the locking rod, the locking stroke is very short, quick locking and loosening can be ensured, meanwhile, the angle of opening can be large, the opening can be kept unchanged, and the device is convenient to insert into the rail. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the perspective view of the first perspective of the utility model;

[0014] Figure 2 is the perspective view of the second perspective of the utility model;

[0015] Figure 3 is the sectional view of the utility model;

[0016] Figure 4 is the front view of the utility model in the state of pressing the rail;

[0017] Figure 5 is the schematic view of the utility model in the loosening state;

[0018] Figure 6 is the structural schematic view of the clamping seat;

[0019] Figure 7 is the assembly schematic view of the handle, the clamping screw, the clamping shaft, the clamping head, the locking shaft, the locking rod and the locking sleeve;

[0020] Figure 8 is the assembly schematic view of the handle, the clamping screw, the clamping shaft, the clamping head, the locking shaft and the locking sleeve;

[0021] Figure 9 is the structural schematic view of the locking rod;

[0022] Figure 10 is the front view of the locking rod;

[0023] Figure 11 is the structural schematic view of the locking sleeve;

[0024] Figure 12 is the front view of the locking sleeve. DETAILED DESCRIPTION

[0025] The present invention will now be further described with reference to the accompanying drawings.

[0026] like Figures 1 to 12 As shown, a clamping device for a rail drilling machine includes a clamping seat 1, a pressure plate 2, a clamping swing rod 3, a clamping shaft 4, a clamping screw 5, a clamping head 61, a locking shaft 62, a locking rod 63, a locking sleeve 65, and a handle 8. The bottom of the clamping seat 1 is connected to the pressure plate 2. A connecting arm 11 is provided in the middle of the clamping seat 1. The connecting arm 11 and the clamping seat 1 are T-shaped. The connecting arm 11 is rotatably connected to the middle of the clamping swing rod 3 via a shaft. The bottom of the clamping swing rod 3 is arranged opposite to the pressure plate 2 and is located on both sides of the rail. The clamping shaft 4 has a clamping threaded hole 41 at its center. Both ends of the clamping shaft 4 are rotatably mounted on the top of the clamping rocker arm 3. The clamping screw 5 is mounted on the clamping threaded hole 41 of the clamping shaft 4. Both ends of the clamping screw 5 are movably connected to the handle 8 and the clamping head 61, respectively. The handle 8 is used to drive the clamping screw 5 to rotate. The clamping head 61 is U-shaped and is equipped with a locking shaft 62. The locking shaft 62 is rotatably connected to the locking sleeve 65, which is also located inside the clamping head 61. The locking rod 63 is mounted on the clamping seat 1 and is movably inserted into the locking sleeve 65 so that the locking sleeve 65 can slide up and down along the locking rod 63. When clamping the rail, the locking shaft 62 is inserted into the locking groove 631, and one end of the clamping rocker arm 3 is clamped to both sides of the rail with the pressure plate 2. When releasing the rail, the locking sleeve 65 and the clamping head 61 are located at the bottom of the locking rod 63, and one end of the clamping rocker arm 3 and the pressure plate 2 are away from both sides of the rail.

[0027] When in the released state, the locking shaft 62 is located outside the locking groove 631. At this time, the clamping screw 5 can be rotated freely, causing the end of the clamping screw 5 with the clamping head 61 to move towards the connecting arm 11. Under the action of the locking sleeve 65 and the locking rod 63, the clamping screw 5 drives the bottom of the clamping swing arm 3 to move away from the pressure plate 2 through the clamping shaft 4. This allows a larger opening to be formed between the clamping swing arm 3 and the pressure plate 2. The large opening angle and the large opening facilitate the insertion of the clamping device onto the rail. At the same time, the locking sleeve 65 and the locking rod 63 can keep the clamping swing arm 3 in a constant state, preventing the clamping arm from rotating automatically when inserted into the rail, which would cause interference with the rail. This improves the convenience and reliability of inserting the device into the rail.

[0028] In the clamping state, push down the end of the clamping screw 5 with the handle 8 to make the locking sleeve 65 slide upward along the locking rod 63 until the locking shaft 62 is inserted into the locking groove 631. Then rotate the handle 8 to press the locking shaft 62 into the locking groove 631. The clamping screw 5 drives the top of the clamping rocker arm 3 to move away from the clamping seat 1 through the clamping shaft 4, thereby pressing the bottom of the clamping rocker arm 3 against the rail. The clamping rocker arm 3 and the pressure plate 2 are clamped on both sides of the rail.

[0029] Since the clamping screw 5 only needs to rotate the locking shaft 62 to be inserted into the locking groove 631 by a distance, the stroke of the clamping screw 5 when clamping is greatly reduced, only one or two turns of the handle 8 is needed, realizing fast clamping and loosening, and improving the efficiency.

[0030] In order to further facilitate loosening and clamping, and further reduce the formation of the clamping screw 5, the top of the locking rod 63 is rotatably installed on the clamping seat 1 through the connecting shaft 64, and the top of the locking rod 63 is provided with a clamping surface 632 which is arranged opposite to the clamping seat 1 and located on one side of the locking groove 631, used for abutting against the clamping seat 1 during clamping to prevent the locking rod 63 from rotating. When loosening, only one turn of the clamping screw 5 is needed, and then the clamping head 61 is pushed downward, the clamping head 61 pushes the locking rod 63 to rotate towards the clamping seat 1 through the locking shaft 62, and then the locking shaft 62 is separated from the locking groove 631, realizing further reduction of the clamping and loosening stroke of the clamping screw 5.

[0031] In order to facilitate the installation of the locking rod 63, the clamping seat 1 is provided with a mounting groove 12, and the top and bottom of the locking rod 63 are movably inserted into the mounting groove 12. The clamping swing rod 3 is also located in the mounting groove 12.

[0032] In order to facilitate the processing of the locking sleeve 65, the locking sleeve 65 is stamped and formed from a plate material, the locking sleeve 65 includes a U-shaped locking body 651 and a anti-dropping plate 652 arranged on the locking body 651, the locking sleeve 65 is integrally formed in a U shape to form a sliding groove, and the locking sleeve 65 is provided with a connecting hole 653 movably inserted into the locking shaft 62. The anti-dropping plate 652 is bent towards the inside of the sliding groove, and then forms a closed sliding groove, so that the locking sleeve 65 moves up and down along the length direction of the locking rod 63.

[0033] In order to facilitate use, the top of the clamping seat 1 is also provided with a handle 8. The handle 8 can rotate an angle.

[0034] In order to facilitate the processing of the clamping seat 1, the clamping seat 1 is symmetrically provided with connecting rods 13 on both sides, and the bottom of the connecting rod 13 is connected with the pressing plate 2.

[0035] The bottom of the clamping swing rod 3 is also provided with a pressing wheel 31 which is arranged opposite to the pressing plate 2. The pressing wheel 31 facilitates insertion into and removal from the rail, changes the sliding friction with the rail into rolling friction, is more labor-saving to operate, can reduce the wear of the clamping swing rod 3, and improves the service life.

[0036] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be interpreted as limiting the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without creative efforts, and these embodiments will all fall within the protection scope of the claims of the present application.

Claims

1. A clamping device for a rail drill, characterized in that The utility model relates to a rail clamp, which comprises: a clamp base (1) provided with a connecting arm (11); a pressing plate (2) provided on both sides of the bottom of the clamp base (1); a clamp swing rod (3) rotatably provided on the connecting arm (11) and oppositely arranged with the pressing plate (2) at one end; a clamp shaft (4) rotatably provided at the other end of the clamp swing rod (3) and provided with a clamp threaded hole (41); a clamp screw rod (5) provided on the clamp threaded hole (41); a clamp head (61) rotatably provided at one end of the clamp screw rod (5); a locking shaft (62) provided on the clamp head (61); a locking rod (63) provided on the clamp base (1) and provided with a locking groove (631) at the top; a locking sleeve (65) slidably provided on the locking rod (63) and rotatably connected with the locking shaft (62) so that the locking sleeve (65) slides up and down along the locking rod (63); and a handle (8) movably provided at the other end of the clamp screw rod (5). When clamping the rail, the locking shaft (62) is inserted into the locking groove (631), and one end of the clamp swing rod (3) and the pressing plate (2) are clamped on both sides of the rail; when releasing the rail, the locking sleeve (65) and the clamp head (61) are located at the bottom of the locking rod (63), and one end of the clamp swing rod (3) and the pressing plate (2) are away from both sides of the rail. The locking rod (63) is rotatably provided on the clamp base (1) and provided with a clamping surface (632) oppositely arranged with the clamp base (1).

2. A clamping device for a rail drill according to claim 1, characterized in that The clamp base (1) is provided with a mounting groove (12), and the locking rod (63) is movably inserted into the mounting groove (12).

3. A clamping device for a rail drill according to claim 2, characterised in that The locking sleeve (65) comprises a U-shaped locking body (651) and an anti-dropping plate (652) provided on the locking body (651).

4. A clamping device for a rail drill according to claim 1, characterized in that Further comprising:

5. A clamping device for a rail drill as defined in claim 1, characterized in that a handle (8) provided on the top of the clamp base (1). The clamp base (1) is further provided with a connecting rod (13) connected with the pressing plate (2).

6. A clamping device for a rail drill according to claim 1, characterized in that Further comprising a pressing wheel (31) rotatably provided at the end of the clamp swing rod (3) and oppositely arranged with the pressing plate (2).

7. A clamping device for a rail drill as defined in claim 1, characterized in that ​

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