Welding fixture for triangular support of rotary drilling machine

Abstract

The utility model discloses a welding fixture for a triangular support of a rotary drilling machine, and relates to the technical field of piling machinery. The tool comprises a bottom plate, bolts are in threaded connection with the four corners of the upper portion of the bottom plate, positioning assemblies are symmetrically arranged on the upper portion of the bottom plate in the front-back direction, each positioning assembly comprises a U-shaped positioning plate arranged on the upper portion of the bottom plate, and lug seats are symmetrically and fixedly connected to the left side and the right side of a rectangular positioning plate arranged on the outer side of the U-shaped positioning plate; the side wall, close to the U-shaped positioning plate, of the lug is connected with a spring, and the end, away from the lug, of the spring is connected to the outer side wall of the U-shaped positioning plate. A clamp adjusting assembly arranged in the middle above the bottom plate is located below the positioning assembly, a lead screw is arranged in a second sliding groove formed in the middle above the bottom plate, the outer sides of ball nuts symmetrically connected to the outer side of the lead screw front and back are sleeved with second sliding blocks, and the upper portions of the second sliding blocks are connected to the middle below the rectangular positioning plate. According to the excavator triangular support clamping device, the excavator triangular support can be conveniently and rapidly positioned, and the power consumption during clamping of the excavator triangular support is effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of pile construction machinery, in particular to a triangular support welding fixture for a rotary drilling machine. Background Art

[0002] Pile-driving machinery refers to machinery used for drilling, piling and sinking piles in various pile foundation constructions; among them, rotary drilling rigs belong to the category of pile-driving machinery. Rotary drilling rigs refer to pile-driving machinery that uses impact force to penetrate piles into the ground. Rotary drilling rigs are composed of pile hammers, pile frames, tripods and ancillary equipment. During the welding process of the rotary drilling rig tripod support, in order to prevent the rotary drilling rig tripod support from shaking due to external factors, the rotary drilling rig tripod support needs to be clamped in advance to facilitate the subsequent welding of the rotary drilling rig tripod support.

[0003] After searching, a patent document with patent announcement number CN216541522U discloses a fixing device for welding a tripod of a rotary drilling machine, comprising a bottom plate, a support plate fixed to the upper end of the bottom plate, a support groove with an upper end opening arranged on the support plate, multiple cylinders fixed to the bottom plates on both sides of the support plate, positioning plates arranged above the bottom plates on both sides of the support plate, piston rods of the cylinders fixed to the positioning plates at corresponding positions, multiple positioning blocks fixed to the positioning plates, and a limiting device fixed to the bottom plate between the two positioning plates. This device can realize that after the triangular plates are welded, the axes of the positioning holes at corresponding positions of the two triangular plates are on the same straight line.

[0004] However, it still has the following disadvantages in actual use:

[0005] 1. The existing fixing device for welding the tripod of the rotary excavator, during use, firstly places the triangle plate between the side plate and the support plate, then controls the cylinder to insert the positioning block into the positioning hole on the triangle plate, realizes the positioning of the triangle plate, makes the axis pins of the positioning holes on the two triangle plates on the same straight line, and facilitates the subsequent welding of the tripod of the excavator. However, due to the complicated operation steps, the time used is increased, which will reduce the overall progress of the welding of the tripod of the excavator;

[0006] 2. The existing fixing device for welding the tripod of the rotary excavator needs to control multiple cylinders to clamp the tripod of the excavator, which is convenient for the subsequent welding of the tripod of the excavator. However, due to the large number of electrical appliances used, the power consumption is increased and the operation steps are increased. Utility Model Content

[0007] The utility model aims to provide a rotary drilling rig tripod support welding fixture, which solves the problems that the existing rotary drilling rig tripod welding fixing device is inconvenient to directly position the excavator tripod and consumes a lot of electricity when clamping the excavator tripod.

[0008] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0009] The utility model discloses a triangular support welding fixture for a rotary drilling machine, comprising a base plate, four corners above the base plate are all threadedly connected with bolts, a positioning assembly is symmetrically arranged front and back above the base plate, the positioning assembly includes a U-shaped positioning plate arranged above the base plate, a rectangular positioning plate arranged on the outer side of the U-shaped positioning plate is symmetrically fixed with ear seats on the left and right sides, the ear seats are connected with springs close to the side walls of the U-shaped positioning plate, and the ends of the springs away from the ear seats are connected to the outer walls of the U-shaped positioning plate; a clamp adjustment assembly arranged in the middle part above the base plate is located below the positioning assembly, a lead screw is arranged inside the second slide groove opened in the middle part above the base plate, a second sliding block is sleeved on the outer side of a ball nut symmetrically connected front and back to the outer side of the lead screw, the second sliding block is connected to the middle part below the rectangular positioning plate above, the second sliding block is slidably connected to the second slide groove, the front side of the motor connected to the front end of the lead screw is connected to the machine base, and the side wall of the machine base close to the motor is connected to the front side wall of the base plate.

[0010] Furthermore, a second arc-shaped groove and a first arc-shaped groove are successively opened on the left and right sides above the support platform arranged in the middle above the bottom plate, and a triangular plate is inserted inside each U-shaped positioning plate, and a second fixing column and a first fixing column are successively arranged on the left and right sides between the inner walls of the two triangular plates, and both ends of the second fixing column are inserted into the second hole groove opened on one side of the inner wall of the triangular plate, and both ends of the first fixing column are inserted into the first hole groove opened on the other side of the inner wall of the triangular plate.

[0011] Furthermore, a first rubber pad is provided on the inner side wall of the U-shaped positioning plate, and a second rubber pad is provided on the inner side wall of the rectangular positioning plate.

[0012] Furthermore, the end of the guide screw sleeved on the inner side of the spring is fixedly connected to the inner wall of the U-shaped positioning plate, the guide screw is sleeved and connected to the ear seat, and the end of the guide screw away from the U-shaped positioning plate is threadedly connected to the limiting nut.

[0013] Furthermore, a sliding rod is fixedly connected to the inner wall of the ear seat away from the rectangular positioning plate, and the sliding rod is slidably connected to third sliding grooves symmetrically opened on the left and right sides of the U-shaped positioning plate.

[0014] Furthermore, a first sliding block is fixedly connected symmetrically to the left and right sides of the U-shaped positioning plate, and the first sliding block is slidably connected to a first sliding groove symmetrically opened to the left and right sides of the bottom plate.

[0015] Furthermore, a support is sleeved on the end of the lead screw away from the motor, the side wall of the support is connected to the rear side wall of the base plate, and a bearing with an interference fit in the middle of the support is rotatably connected to the lead screw.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model provides a positioning component, which is convenient for the staff to directly insert the triangle plate into the positioning component to complete the positioning of the triangle plate, effectively simplifies the working steps of the triangle plate positioning, effectively speeds up the efficiency of the triangle plate positioning, and effectively improves the welding efficiency of the rotary drilling rig triangle support.

[0018] 2. The utility model sets a clamp adjustment component to facilitate the staff to operate a single motor to adjust the distance between the two positioning components, thereby achieving the clamping of the rotary drilling rig's tripod support. The rotary drilling rig's tripod support in the present application consists of two triangular plates, a first fixed column and a second fixed column, which reduces the number of driving electrical appliances used, reduces power consumption, and reduces the working steps when clamping the rotary drilling rig's tripod support. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0020] Figure 1 It is a three-dimensional schematic diagram of a triangular support welding fixture for a rotary drilling machine;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0022] Figure 3 for Figure 1 Enlarged schematic diagram of the structure at B in the middle

[0023] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point C in the middle.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Base plate; 11. Bolt; 12. First slide groove; 13. Second slide groove; 2. Support table; 21. First arc groove; 211. First fixing column; 22. Second arc groove; 221. Second fixing column; 3. Positioning assembly; 31. U-shaped positioning plate; 311. First rubber pad; 312. First slider; 313. Third slide groove; 32. Rectangular positioning plate; 321. Second rubber pad; 322. Limit nut; 323. Guide screw; 324. Ear seat; 325. Spring; 326. Slide rod; 4. Clamp adjustment assembly; 41. Motor; 411. Machine base; 42. Lead screw; 421. Second slider; 422. Ball nut; 423. Support; 424. Bearing; 5. Triangle plate; 51. First hole groove; 52. Second hole groove. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] See also Figure 1 , 2 As shown, the utility model is a welding fixture for the triangular support of a rotary drilling machine, comprising a bottom plate 1, four corners of the top of the bottom plate 1 are all threadedly connected with bolts 11, a positioning assembly 3 is symmetrically arranged front and back on the top of the bottom plate 1, the positioning assembly 3 comprises a U-shaped positioning plate 31 arranged on the top of the bottom plate 1, a rectangular positioning plate 32 arranged on the outer side of the U-shaped positioning plate 31 is symmetrically fixed with ear seats 324 on the left and right sides, the ear seats 324 are connected to the side walls close to the U-shaped positioning plate 31 with springs 325, and the ends of the springs 325 away from the ear seats 324 are connected to the outer side walls of the U-shaped positioning plate 31, and the cooperation between the U-shaped positioning plate 31 and the rectangular positioning plate 32 effectively reduces the working steps of the position positioning of the triangular plate 5, and facilitates and quickly positions the triangular plate 5;

[0028] Among them Figure 1 As shown, the second arc groove 22 and the first arc groove 21 are sequentially opened on the left and right sides of the support table 2 arranged in the middle above the bottom plate 1, and the triangle plate 5 is inserted into the inside of the two U-shaped positioning plates 31. The second fixing column 221 and the first fixing column 211 are sequentially arranged on the left and right sides between the inner side walls of the two triangle plates 5. The two ends of the second fixing column 221 are plugged into the second hole groove 52 opened on one side of the inner side wall of the triangle plate 5, and the two ends of the first fixing column 211 are plugged into the first hole groove 51 opened on the other side of the inner side wall of the triangle plate 5, which is convenient for defining the position of the plugged triangle plate 5, the first fixing column 211 and the second fixing column 221 after plugging, and convenient for the later welding between the triangle plate 5, the first fixing column 211 and the second fixing column 221;

[0029] Among them Figure 2 As shown, the inner wall of the U-shaped positioning plate 31 is provided with a first rubber pad 311, and the inner wall of the rectangular positioning plate 32 is provided with a second rubber pad 321, which effectively prevents the U-shaped positioning plate 31 and the rectangular positioning plate 32 from directly clamping and contacting the triangular plate 5, and effectively prevents the triangular plate 5 from being damaged due to excessive clamping force of the U-shaped positioning plate 31 and the rectangular positioning plate 32, thereby protecting the triangular plate 5;

[0030] The end of the guide screw 323 sleeved inside the spring 325 is fixedly connected to the inner wall of the U-shaped positioning plate 31, and the guide screw 323 is sleeved and connected with the ear seat 324. The end of the guide screw 323 away from the U-shaped positioning plate 31 is threadedly connected to the limiting nut 322. The guide screw 323 effectively prevents the spring 325 from being completely deformed during operation, and the guide screw 323 limits the movement trajectory of the ear seat 324 and the movement trajectory of the rectangular positioning plate 32, thereby improving the stability of the rectangular positioning plate 32 when moving. The limiting nut 322 effectively prevents the ear seat 324 from being separated from the guide screw 323 during the process of linear movement.

[0031] A sliding rod 326 is fixedly connected to the inner side wall of the ear seat 324 away from the rectangular positioning plate 32. The sliding rod 326 is slidably connected to the third sliding grooves 313 symmetrically opened on the left and right sides of the U-shaped positioning plate 31. The sliding rod 326 cooperates with the third sliding grooves 313 to effectively limit the moving trajectory of the ear seat 324, further improving the stability of the rectangular positioning plate 32 during the movement.

[0032] A first slider 312 is fixedly connected symmetrically to the bottom of the U-shaped positioning plate 31. The first slider 312 is slidably connected to a first slide groove 12 symmetrically opened on the top of the bottom plate 1. The first slider 312 cooperates with the first slide groove 12 to effectively limit the U-shaped positioning plate 31 to only move linearly above the bottom plate 1, thereby improving the stability of the U-shaped positioning plate 31 when moving.

[0033] When the above-mentioned arrangement is used, the lower side of the triangle plate 5 is aligned with the gap between the U-shaped positioning plate 31 and the rectangular positioning plate 32, and an external force is applied to the triangle plate 5 in the direction close to the base plate 1. The triangle plate 5 is gradually inserted into the gap between the U-shaped positioning plate 31 and the rectangular positioning plate 32 until the lower side of the triangle plate 5 contacts the upper side of the base plate 1, thereby completing the positioning of the triangle plate 5; otherwise, the triangle plate 5 is removed from the positioning assembly 3.

[0034] Among them Figure 1 , 3 As shown in , 4, the clamp adjustment component 4 arranged in the middle of the upper part of the base plate 1 is located below the positioning component 3, and a lead screw 42 is arranged inside the second slide groove 13 opened in the middle of the upper part of the base plate 1, and a second slider 421 is sleeved on the outer side of a ball nut 422 symmetrically connected to the front and rear sides of the lead screw 42, and the upper part of the second slider 421 is connected to the middle of the lower part of the rectangular positioning plate 32, and the second slider 421 is slidably connected to the second slide groove 13, and the front side of the motor 41 connected to the front end of the lead screw 42 is connected to the base 411, and the side wall of the base 411 close to the motor 41 is connected to the front side wall of the base plate 1, so that the staff can operate the single motor 41 conveniently, adjust the distance between the two positioning components 3, and clamp the triangle plate 5, thereby reducing the number of driving electrical appliances used when clamping the triangle plate 5, reducing power consumption, and simplifying the operation steps of the staff;

[0035] Among them Figure 1 , 4 As shown, a support 423 is sleeved on the end of the lead screw 42 away from the motor 41, and the side wall of the support 423 is connected to the rear side wall of the bottom plate 1. A bearing 424 with interference fit in the middle of the support 423 is rotatably connected to the lead screw 42. The support 423 supports the end of the lead screw 42 away from the motor 41, thereby improving the stability of the lead screw 42 when rotating.

[0036] When the above-mentioned arrangement is used, the motor 41 is started and the screw 42 rotates. When the two second sliders 421 move in opposite directions along the second slide groove 13, the compressed spring 325 gradually stretches, and the rectangular positioning plate 32 gradually moves away from the U-shaped positioning plate 31, gradually releasing the clamped triangle plate 5. On the contrary, when the two second sliders 421 move toward each other along the second slide groove 13, the spring 325 contracts, and the rectangular positioning plate 32 gradually approaches the U-shaped positioning plate 31, gradually clamping the triangle plate 5, that is, the clamping of the triangle plate 5 is completed, and the external electric welding equipment is controlled to weld the triangle plate 5, the first fixed column 211 and the second fixed column 221.

[0037] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A triangular support welding fixture for a rotary drilling machine, comprising a base plate (1), wherein the four corners above the base plate (1) are all threadedly connected with bolts (11), and the characteristics are: A positioning assembly (3) is symmetrically arranged front and back above the bottom plate (1), and the positioning assembly (3) comprises a U-shaped positioning plate (31) arranged above the bottom plate (1), and a rectangular positioning plate (32) arranged outside the U-shaped positioning plate (31) is symmetrically fixed with ear seats (324) on both sides, and the ear seats (324) are connected to the side wall of the U-shaped positioning plate (31) close to the side wall of the U-shaped positioning plate (31) with a spring (325), and the end of the spring (325) away from the ear seat (324) is connected to the outer wall of the U-shaped positioning plate (31); The clamp adjustment assembly (4) arranged in the middle of the upper part of the base plate (1) is located below the positioning assembly (3); a lead screw (42) is arranged inside the second slide groove (13) opened in the middle of the upper part of the base plate (1); a second slider (421) is sleeved on the outer side of a ball nut (422) symmetrically connected to the front and rear sides of the lead screw (42); the upper part of the second slider (421) is connected to the middle of the lower part of the rectangular positioning plate (32); the second slider (421) is slidably connected to the second slide groove (13); the front side of the motor (41) connected to the front end of the lead screw (42) is connected to a base (411); the side wall of the base (411) close to the motor (41) is connected to the front side wall of the base (1).

2. The triangular support welding fixture for rotary drilling machine according to claim 1, characterized in that: A second arc-shaped groove (22) and a first arc-shaped groove (21) are sequentially provided on the left and right sides of the support platform (2) arranged in the middle above the bottom plate (1); a triangular plate (5) is inserted into the interior of each of the U-shaped positioning plates (31); a second fixing column (221) and a first fixing column (211) are sequentially provided on the left and right sides between the inner side walls of the two triangular plates (5); two ends of the second fixing column (221) are plugged into a second hole groove (52) opened on one side of the inner side wall of the triangular plate (5); and two ends of the first fixing column (211) are plugged into a first hole groove (51) opened on the other side of the inner side wall of the triangular plate (5).

3. The triangular support welding fixture for rotary drilling machine according to claim 1, characterized in that: The inner side wall of the U-shaped positioning plate (31) is provided with a first rubber pad (311), and the inner side wall of the rectangular positioning plate (32) is provided with a second rubber pad (321).

4. The triangular support welding fixture for rotary drilling machine according to claim 1, characterized in that: The end of the guide screw (323) sleeved on the inner side of the spring (325) is fixedly connected to the inner wall of the U-shaped positioning plate (31), the guide screw (323) is sleeved and connected to the ear seat (324), and the end of the guide screw (323) away from the U-shaped positioning plate (31) is threadedly connected to the limiting nut (322).

5. The triangular support welding fixture for rotary drilling machine according to claim 4, characterized in that: A sliding rod (326) is fixedly connected to the inner side wall of the ear seat (324) away from the rectangular positioning plate (32), and the sliding rod (326) is slidably connected to the third sliding grooves (313) symmetrically opened on the left and right sides of the U-shaped positioning plate (31).

6. The triangular support welding fixture for rotary drilling machine according to claim 5, characterized in that: A first sliding block (312) is fixedly connected symmetrically to the bottom of the U-shaped positioning plate (31), and the first sliding block (312) is slidably connected to a first sliding groove (12) symmetrically opened on the top of the bottom plate (1).

7. The triangular support welding fixture for rotary drilling machine according to claim 1, characterized in that: A support (423) is sleeved on the end of the lead screw (42) away from the motor (41); a side wall of the support (423) is connected to the rear side wall of the base plate (1); and a bearing (424) in an interference fit in the middle of the support (423) is rotatably connected to the lead screw (42).

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