An upper center disc drilling tool

Abstract

The utility model provides a kind of upper heart disc drilling tool, including workbench, the upper surface of workbench is provided with drilling groove, the inside bottom end of drilling groove is fixedly provided with two symmetrical distribution's support, the upper surface of support is all fixedly provided with guide rail, the upper side of guide rail is all slidably provided with two symmetrical distribution's sliding block, two sliding blocks between transverse adjacent are all fixedly provided with clamping seat, two symmetrical distribution's slide column is all slidably provided on clamping seat, the end of slide column away from clamping seat is all rollingly provided with movable seat. The upper heart disc drilling tool described in the utility model can quickly and stably clamp the upper heart disc to be drilled from the horizontal direction of front, rear, left and right and the vertical direction of upper and lower two sides, and then facilitate drilling operation on the upper heart disc to be drilled by external drilling device, avoid displacement of the upper heart disc due to vibration during drilling, and effectively control the accuracy of drilling.

Description

Technical Field

[0001] This utility model belongs to the field of upper center plate processing technology, and specifically relates to an upper center plate drilling tool. Background Technology

[0002] The upper center plate is a key component in the railway freight car bogie system. It is installed on the middle beam or sleeper beam of the car body underframe and works in conjunction with the lower center plate on the bogie. They are connected by a center pin. The upper center plate drilling fixture is a special fixture used in the maintenance and manufacturing of railway freight car bogies to efficiently and accurately machine the mounting holes of the upper center plate.

[0003] Existing center plate drilling fixtures are designed to fix a fixture plate to the worktable of a radial drilling machine via side lugs and mounting slots. A magnet holds the large flat surface of the center plate, which is then placed on the fixture plate. The positioning boss on the fixture plate mates with the lower part of the stepped hole on the bottom of the center plate for initial positioning. The drill template is then lowered, and its bottom positioning sleeve mates with the inner wall of the center pin hole of the center plate for precise positioning. The drill template typically resembles the center plate in shape, is covered with a pressure plate, and tightened with bolts. The strip-shaped pad at the bottom of the pressure plate effectively enhances the clamping force and stability. However, in actual use, the installation and fixing of the center plate takes a considerable amount of time, and during drilling, vibrations can cause the bolts to scratch the inner wall of the center plate's pin hole, affecting drilling accuracy and reducing the yield rate. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the prior art by providing a top center plate drilling fixture, which can quickly and stably clamp the top center plate to be drilled from the horizontal direction (front, back, left, right) and the vertical direction (top, bottom, and sides). This facilitates drilling operations on the top center plate of the external drilling device, avoids displacement of the top center plate due to vibration during drilling, and can effectively control the drilling accuracy.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a top-plate drilling fixture, including a worktable, a drilling groove provided on the upper surface of the worktable, two symmetrically distributed supports fixedly disposed at the bottom of the drilling groove, a guide rail fixedly disposed on the upper surface of each support, two symmetrically distributed sliders slidably disposed on the upper side of each guide rail, a clamping seat fixedly disposed between each two laterally adjacent sliders, two symmetrically distributed sliding columns slidably disposed on each clamping seat, and a movable seat rollingly disposed at the end of each sliding column away from the clamping seat. Each seat has two symmetrically distributed guide grooves, and each guide groove has a sliding block that is slidably installed inside. Each sliding block has a clamping block that is fixedly installed on it. Each movable seat has a clamping plate that is fixedly installed on the side away from the clamping seat. Each movable seat has a rubber pad one that is glued and fixed in the middle of the side of the worktable closest to the vertical center. Each clamping block has a rubber pad two that is glued and fixed in the side of the movable seat closest to the horizontal center. Each clamping plate has a rubber pad three that is glued and fixed in the side of the worktable closest to the vertical center. Multiple door panels are rotatably installed on the front side of the worktable, and multiple support legs are installed on the lower surface of the worktable.

[0006] As a further improvement of this utility model, a drive seat is fixedly provided in the middle of the movable seat, and a drive rod is slidably provided inside the drive seat. A rotating block is fixedly provided at the end of the drive rod away from the drive seat. A connecting rod is rotatably provided on both the upper and lower sides of the rotating block. The end of the connecting rod away from the rotating block is rotatably connected to the adjacent sliding block. An adjusting screw is rotatably provided inside the drive seat. The adjusting screw is threadedly connected to the adjacent drive rod. A servo motor is fixedly provided on the side of the drive seat away from the drive rod. The output shaft of the servo motor is fixed to the adjacent adjusting screw through a coupling.

[0007] As a further improvement of this utility model, the clamping seat is internally fixed with two symmetrically distributed support plates. Each support plate has an adjusting screw 1 rotatably mounted in the middle. The adjusting screw 1 is threadedly connected to the adjacent sliding column. A dual-axis motor is installed between the support plates. The output shaft of the dual-axis motor is fixed to the adjacent adjusting screw 1 through a coupling.

[0008] As a further improvement of this utility model, two symmetrically distributed mounting platforms are fixedly installed at the bottom of the drilled groove. Electric push rods are fixedly installed on the upper surface of each mounting platform, and the telescopic ends of the electric push rods are respectively connected and fixed to the adjacent clamping seats.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] Firstly, the dual-axis motors on both sides are controlled to rotate, and then the output shafts of the dual-axis motors drive the adjusting screws connected to them to rotate, thereby adjusting the horizontal position of the movable seat and the clamping plate on the movable seat, so that the movable seat and the clamping plate on the movable seat can be stably clamped and fixed to the upper center plate to be drilled.

[0011] Secondly, the upper center plate to be drilled is placed between four movable seats through an external transfer device. Then, the electric push rods on both sides are controlled to move, so that the movable seats on both sides move towards each other to clamp and fix the upper center plate in the horizontal direction. At this time, the clamping plate on the movable seat clamps and fixes the upper center plate to be drilled in a stable manner from the other side in the horizontal direction.

[0012] Third, control the operation of the servo motor so that the output shaft of the servo motor drives the adjusting screw two connected to it to rotate, so that the sliding blocks on the upper and lower sides move towards the side of the upper center plate to be drilled, thereby causing the clamping blocks on the upper and lower sides to move towards the side of the upper center plate to be drilled, thereby clamping and fixing the horizontally clamped upper center plate in the vertical direction.

[0013] Fourth, the combination of movable seat, clamping block and clamping plate can stably clamp the upper center plate to be drilled in the horizontal direction of front, back and left and right and the vertical direction of top and bottom, which facilitates drilling operations on the upper center plate of the external drilling device. This prevents the upper center plate from being displaced due to vibration when the drill bit driven by the external robot is drilling the upper center plate, and can effectively control the drilling accuracy. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of the drilling fixture for the upper center plate of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the upper center plate drilling tool of this utility model;

[0017] Figure 3 This is an enlarged structural diagram of point A of the drilling fixture for the upper center plate of this utility model;

[0018] Figure 4 This is a schematic diagram of the planar structure of the drilling fixture for the upper center plate of this utility model.

[0019] In the diagram: 101, workbench; 102, support leg; 103, door panel; 104, drilling groove; 105, support platform; 106, mounting platform; 107, guide rail; 108, slider; 109, clamping seat; 110, electric push rod; 201, sliding column; 202, movable seat; 203, guide slide; 204, sliding block; 205, clamping block; 206, clamping plate; 207, rubber pad one; 208, rubber pad two; 209, rubber pad three; 210, drive seat; 211, drive rod; 212, rotating block; 213, connecting rod; 214, servo motor; 215, support plate; 216, adjusting screw one; 217, dual-axis motor. Detailed Implementation

[0020] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0021] like Figure 1 , 4 As shown, the device includes a worktable 101. A drilling groove 104 is provided on the upper surface of the worktable 101. Two symmetrically distributed supports 105 are fixedly installed at the bottom of the drilling groove 104. Guide rails 107 are fixedly installed on the upper surface of each support 105. Two symmetrically distributed sliders 108 are slidably arranged on the upper side of each guide rail 107. A clamping seat 109 is fixedly installed between two horizontally adjacent sliders 108. Two symmetrically distributed sliding columns 201 are slidably arranged on each clamping seat 109. A movable end of each sliding column 201, away from the clamping seat 109, is rotatably mounted. Both the movable seat 202 and the moving seat 202 have two symmetrically distributed guide grooves 203. Sliding blocks 204 are slidably arranged inside the guide grooves 203. Clamping blocks 205 are fixedly arranged on the sliding blocks 204. Clamping plates 206 are fixedly arranged on the side of the moving seat 202 away from the clamping seat 109. Two symmetrically distributed mounting platforms 106 are fixedly arranged at the bottom of the drilling groove 104. Electric push rods 110 are fixedly arranged on the upper surface of the mounting platforms 106. The telescopic ends of the electric push rods 110 are respectively connected and fixed to the adjacent clamping seats 109.

[0022] like Figure 2 , 3As shown, a drive seat 210 is fixedly installed in the middle of the movable seat 202. A drive rod 211 is slidably installed inside the drive seat 210. A rotating block 212 is fixedly installed at the end of the drive rod 211 away from the drive seat 210. A connecting rod 213 is rotatably installed on both the upper and lower sides of the rotating block 212. The end of the connecting rod 213 away from the rotating block 212 is rotatably connected to the adjacent sliding block 204. An adjusting screw 2 is rotatably installed inside the drive seat 210. The adjusting screw 2 is threadedly connected to the adjacent drive rod 211. A servo motor 214 is fixedly installed on the side of the drive seat 210 away from the drive rod 211. The output shaft of the servo motor 214 is fixed to the adjacent adjusting screw through a coupling.

[0023] like Figure 2 , 3 As shown, the clamping base 109 has two symmetrically distributed support plates 215 fixedly installed inside. Each support plate 215 has an adjusting screw 216 rotatably installed in the middle. The adjusting screw 216 is threadedly connected to the adjacent sliding column 201. A dual-axis motor 217 is installed between the support plates 215. The output shaft of the dual-axis motor 217 is fixed to the adjacent adjusting screw 216 through a coupling.

[0024] like Figure 1 , 3 As shown, rubber pad 207 is glued and fixed to the middle of the side of the movable seat 202 near the vertical center of the workbench 101, rubber pad 208 is glued and fixed to the side of the clamping block 205 near the horizontal center of the movable seat 202, and rubber pad 209 is glued and fixed to the side of the clamping plate 206 near the vertical center of the workbench 101.

[0025] According to another embodiment of the present invention, such as Figure 1 , 2 As shown, the front side of the workbench 101 is provided with multiple door panels 103, and the lower surface of the workbench 101 is provided with multiple support legs 102.

[0026] In use, the dual-axis motors 217 on both sides are controlled to rotate, and the output shafts of the dual-axis motors 217 drive the adjusting screws 216 connected to them to rotate. The thread relationship between the adjusting screws 216 and the sliding column 201 causes the sliding column 201 to slide with the clamping seat 109. This causes the sliding column 201 to move the movable seat 202 synchronously closer to or away from the vertical center of the worktable 101, thereby adjusting the horizontal position of the movable seat 202 and the clamping plate 206 on the movable seat 202. This allows the movable seat 202 and the clamping plate 206 on the movable seat 202 to be stably clamped and fixed by the upper center plate to be drilled.

[0027] The upper center plate to be drilled is placed between four movable seats 202 via an external transfer device. Then, the electric push rods 110 on both sides are controlled to run, which causes the telescopic ends of the electric push rods 110 to move the clamping seats 109 connected to them. Then, through the sliding relationship between the guide rail 107 and the slider 108, the slider 108 is moved to the side closer to the upper center plate, which causes the clamping seats 109 on both sides to move closer to each other between the guide rail 107, so that the clamping seats 109 on both sides move closer to each other to clamp and fix the upper center plate in the horizontal direction. At this time, the clamping plates 206 on the movable seats 202 stably clamp and fix the upper center plate to be drilled from the other side in the horizontal direction.

[0028] By using the movable seat 202 and the clamping plate 206 on the movable seat 202 to approach the upper center plate of the hole to be drilled, the upper center plate of the hole to be drilled can be stably clamped and fixed from the front-back direction and the left-right direction.

[0029] Then, the servo motor 214 is controlled to run, so that the output shaft of the servo motor 214 drives the adjusting screw 2 connected to it to rotate. Then, through the thread relationship between the adjusting screw 2 and the drive rod 211, the drive rod 211 is driven to extend out of the drive seat 210. This causes the drive rod 211 to drive the rotating block 212 at its end to move away from the drive seat 210. During the movement of the rotating block 212, the rotating block 212 rotates with the connecting rod 213 and the sliding block 204 rotates. As the rotating block 212 moves away from the drive seat 210, the rotating block 212 pulls the upper and lower sliding blocks 204 together through the connecting rod 213. This causes the upper and lower sliding blocks 204 to move closer to the upper center plate of the hole to be drilled. This causes the upper and lower clamping blocks 205 to move closer to the upper center plate of the hole to be drilled, thereby clamping and fixing the horizontally clamped upper center plate vertically.

[0030] The movable seat 202, clamping block 205 and clamping plate 206 work together to stably clamp the upper center plate to be drilled in the horizontal direction (front, back, left, right) and the vertical direction (up, down, and right). This makes it easier for the external drilling device to drill the upper center plate. It also prevents the upper center plate from shifting due to vibration when the drill bit driven by the external robot is drilling the upper center plate, thus effectively controlling the drilling accuracy.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A drilling fixture for a top center plate, comprising a worktable (101), characterized in that: The upper surface of the workbench (101) is provided with a drilling groove (104). Two symmetrically distributed supports (105) are fixedly installed at the bottom of the inner part of the drilling groove (104). A guide rail (107) is fixedly installed on the upper surface of each support (105). Two symmetrically distributed sliders (108) are slidably installed on the upper side of each guide rail (107). A clamping seat (109) is fixedly installed between each two horizontally adjacent sliders (108). Two clamping seats (109) are slidably installed on each clamping seat (109). Symmetrically distributed sliding columns (201) are provided. Each end of the sliding column (201) away from the clamping seat (109) is provided with a movable seat (202). Each movable seat (202) has two symmetrically distributed guide grooves (203). Each guide groove (203) is provided with a sliding block (204). Each sliding block (204) is fixedly provided with a clamping block (205). Each movable seat (202) away from the clamping seat (109) is fixedly provided with a clamping plate (206).

2. The upper center plate drilling fixture as described in claim 1, characterized in that: Each of the movable seats (202) is fixedly provided with a drive seat (210) in the middle. Each drive seat (210) is slidably provided with a drive rod (211). Each drive rod (211) is fixedly provided with a rotating block (212) at the end away from the drive seat (210). Each rotating block (212) is rotatably provided with a connecting rod (213) on the upper and lower sides. Each connecting rod (213) is rotatably connected to an adjacent sliding block (204) at the end away from the rotating block (212).

3. The upper center plate drilling fixture as described in claim 2, characterized in that: The drive seat (210) is rotatably equipped with an adjusting screw two, which is threadedly connected to the adjacent drive rod (211). The drive seat (210) is fixedly equipped with a servo motor (214) on the side away from the drive rod (211). The output shaft of the servo motor (214) is fixed to the adjacent adjusting screw through a coupling.

4. The upper center plate drilling fixture as described in claim 1, characterized in that: The clamping seat (109) has two symmetrically distributed support plates (215) fixedly installed inside. Each support plate (215) has an adjusting screw (216) rotatably installed in the middle. The adjusting screw (216) is threadedly connected to the adjacent sliding column (201).

5. The upper center plate drilling fixture as described in claim 4, characterized in that: A dual-axis motor (217) is provided between the support plates (215), and the output shaft of the dual-axis motor (217) is fixed to the adjacent adjusting screw (216) by a coupling.

6. The upper center plate drilling fixture as described in claim 1, characterized in that: Rubber pad 1 (207) is glued and fixed to the middle of the side of the movable seat (202) near the vertical center of the workbench (101). Rubber pad 2 (208) is glued and fixed to the side of the clamping block (205) near the horizontal center of the movable seat (202). Rubber pad 3 (209) is glued and fixed to the side of the clamping plate (206) near the vertical center of the workbench (101).

7. The upper center plate drilling fixture as described in claim 1, characterized in that: Two symmetrically distributed mounting platforms (106) are fixedly installed at the bottom of the drilled groove (104). Electric push rods (110) are fixedly installed on the upper surface of each mounting platform (106). The telescopic ends of the electric push rods (110) are respectively connected and fixed to the adjacent clamping seats (109).

8. The upper center plate drilling fixture as described in claim 1, characterized in that: The workbench (101) is rotatably provided with multiple door panels (103) on its front side, and multiple support legs (102) are provided on the lower surface of the workbench (101).

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