U-bolt grinding and polishing machine

Abstract

The application discloses a U-shaped bolt polishing and polishing machine, which comprises a workbench, a fixing frame is arranged on the upper surface of the workbench, a fixing seat for fixing the U-shaped bolt is arranged on the top of the fixing frame, a fixing groove matched with the U-shaped bolt is arranged in the fixing seat, and a leaving groove for the rod part of the U-shaped bolt to extend out is arranged on the two sides of the fixing frame; and limiting plates are arranged on the front and back sides of the U-shaped bolt. The electromagnet is arranged in the upper base, the bolt is electromagnetically adsorbed by the electromagnet, the bolt is fixed to the upper base, and the material taking process is automatically completed; the bolt is fixed and limited by the combination of the upper base and the lower base, the front and back sides of the bolt are fixed and limited by the limiting plates, the stability of the bolt during polishing is ensured, and the polishing effect is good.

Description

[Technical Field]

[0001] This invention relates to the technical field of bolt processing equipment, and in particular to the technical field of U-bolt grinding and polishing machines. [Background Technology]

[0002] U-bolts, also known as saddle bolts, are non-standard parts named for their U-shaped shape. They have threads at both ends that can be used with nuts. They are mainly used to fix tubular objects such as water pipes or sheet objects such as leaf springs in automobiles. Because the way they fix objects is like a person riding a horse, they are called saddle bolts.

[0003] U-bolts are prone to deformation due to quenching and other processes, so they need to be inspected and corrected. Currently, this is usually done manually, which is very labor-intensive. Before leaving the factory, the thread section of the U-bolt also needs to be polished. The purpose of this is to reduce the surface roughness of the thread, reduce machining defects and residual stress on the spiral surface, and ensure that the surface quality of the thread meets the design and usage requirements. Currently, this is usually done manually, which is inefficient. [Summary of the Invention]

[0004] The purpose of this invention is to solve the problems in the prior art and to propose a U-bolt grinding and polishing machine that can automatically detect, correct and polish U-bolts, which is very convenient.

[0005] To achieve the above objectives, this invention proposes a U-bolt grinding and polishing machine, comprising a worktable, a fixed frame mounted on the upper surface of the worktable, a fixed seat for fixing the U-bolt at the top of the fixed frame, a fixing groove matching the U-bolt inside the fixed seat, clearance grooves for the U-bolt shank to extend on both sides of the fixed frame, limiting plates on the front and rear sides of the U-bolt, a bidirectional lead screw at the bottom of the fixed frame, sliding sleeves threaded on the threaded sections on both sides of the bidirectional lead screw, the sliding sleeves being connected to the limiting plates, a movable through groove on the worktable, a lifting plate inside the movable through groove, a lifting cylinder connected to the bottom of the lifting plate, two turntables rotatably mounted on both sides of the lifting plate, polishing brushes mounted on the turntables, rotating gears mounted on the rotating shafts of the turntables, a drive gear meshing between the two rotating gears, and a drive motor connected to the drive gear.

[0006] Preferably, the fixing base is composed of a lower base and an upper base. The upper surface of the lower base is provided with a first half-groove that matches the U-bolt, and the lower surface of the upper base is provided with a second half-groove that matches the shape of the transverse connecting part. The first half-groove and the second half-groove are combined to form a fixing groove.

[0007] Preferably, the workbench is provided with a feeding rack on its side, with U-bolts neatly arranged on the feeding rack. The feeding rack consists of two parallel feeding rods, which are inclined downwards and forwards. The front end of the feeding rods has an upwardly bent protrusion. A top frame is provided above the workbench, and a feeding slide rail is provided on the top frame. A movable seat is slidably installed on the feeding slide rail. A feeding cylinder is provided at the bottom of the movable seat. The output end of the feeding cylinder is connected to the upper base. The lower base is installed on a fixed frame, and an electromagnet is embedded inside the upper base.

[0008] Preferably, there are two bidirectional lead screws, which are symmetrically arranged on the left and right sides of the fixed frame, and the bidirectional lead screws are driven to rotate by a rotating motor.

[0009] Preferably, each turntable is equipped with two polishing brushes, and a double-moving linear motor is installed on the top of the turntable. The double-moving linear motor has two moving parts, and the two polishing brushes are fixed on the two moving parts respectively.

[0010] Preferably, the lifting plate is equipped with support rods on both sides, and a detection plate is installed on the top of the support rods. The detection plate has two detection holes and a pressure sensor on its surface. The bottom of the fixed frame is equipped with a proximity sensor for sensing the detection plate. Adjustment slide rails are installed on both sides of the worktable. Sliding seats are slidably installed on the adjustment slide rails. An adjustment cylinder is fixed on the sliding seat. An adjustment frame in the shape of a gate is fixed to the output end of the adjustment cylinder. A first opening is provided on the front side of the adjustment frame, and a second opening is provided on the side of the adjustment frame away from the adjustment cylinder.

[0011] Preferably, the adjustment frame includes a push plate and a pull plate that are parallel to each other. The rear ends of the push plate and the pull plate are connected by a baffle. The front end of the push plate protrudes from the front end of the pull plate. A pressure sensor is provided on the surface of the push plate. The support rod is a telescopic rod.

[0012] The beneficial effects of this invention are as follows: By setting an electromagnet in the upper base, the bolt is electromagnetically attracted and fixed to the upper base, thus automatically completing the material handling process; by assembling the upper and lower bases, the bolt is limited and fixed, and the limiting plate limits and fixes the front and rear sides of the bolt, ensuring the stability of the bolt during grinding and achieving a good grinding effect; before grinding, the opening size of the U-bolt is detected by a detection plate. If the detection fails, the bolt is inserted into the adjustment frame, and the opening size is adjusted by an adjustment cylinder, so that the U-bolt passes the detection and proceeds to the next polishing process.

[0013] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. [Attached Image Description]

[0014] Figure 1 This is a schematic diagram of the structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the polishing process of the present invention;

[0016] Figure 3 This is a top view of the present invention;

[0017] Figure 4 This is a schematic diagram of the feeding process of the present invention;

[0018] Figure 5 This is a schematic diagram of the bolt fixing of the present invention;

[0019] Figure 6 This is a schematic diagram of the adjustment frame structure of the present invention.

[0020] In the diagram: 1-Workbench, 2-Fixed frame, 3-Limit plate, 4-Turntable, 5-Upper base, 6-Feed rack, 7-Detection plate, 8-Adjusting cylinder, 11-Modible through slot, 12-Lifting plate, 13-Lifting cylinder, 14-Support rod, 15-Adjusting slide rail, 16-Sliding seat, 21-Leaning groove, 22-Lower base, 23-Proximity sensor, 31-Double lead screw, 32-Sliding sleeve, 41-Polishing brush, 51-Feed slide rail, 52-Moving seat, 53-Feeding cylinder, 54-Electromagnet, 71-Detection hole, 81-Adjusting frame, 82-First opening, 83-Second opening, 811-Push plate, 812-Pull plate, 813-Baffle.

Detailed Implementation Methods

[0021] Example 1:

[0022] A U-bolt grinding and polishing machine includes a worktable 1. A fixed frame 2 is mounted on the upper surface of the worktable 1. The top of the fixed frame 2 is equipped with a fixing seat for fixing U-bolts. The fixing seat has a fixing groove that matches the U-bolt. The two sides of the fixed frame 2 are provided with relief grooves 21 for the U-bolt shank to extend. Limiting plates 3 are provided on the front and rear sides of the U-bolt. The bottom of the fixed frame 2 is provided with a double-acting screw 31. Sliding sleeves 32 are threaded on the threaded sections on both sides of the double-acting screw 31. The sliding sleeves 32 are connected to the limiting plates 3. A movable through groove 11 is opened on the worktable 1. A lifting plate 12 is provided in the movable through groove 11. The bottom of the lifting plate 12 is connected to a lifting cylinder 13. The two sides of the lifting plate 12 rotate. The device has two rotating disks 4, each equipped with a polishing brush 41. A rotating gear is mounted on the shaft of each disk 4, and a drive gear meshes between the two rotating gears. The drive gear is connected to a drive motor. The fixed base is formed by assembling a lower base 22 and an upper base 5. The upper surface of the lower base 22 has a first half-groove that matches the U-bolt, and the lower surface of the upper base 5 has a second half-groove that matches the shape of the transverse connecting part. The first and second half-grooves are assembled to form a fixing groove. Each rotating disk 4 has two polishing brushes 41. A double-moving linear motor 42 is mounted on the top of each rotating disk 4. The double-moving linear motor 42 has two moving parts, and the two polishing brushes 41 are fixed to the two moving parts respectively.

[0023] Example 2:

[0024] See Figures 1 to 6A U-bolt grinding and polishing machine includes a worktable 1, a fixed frame 2 mounted on the upper surface of the worktable 1, a fixed seat for fixing U-bolts on the top of the fixed frame 2, a fixing groove matching the U-bolt inside the fixed seat, clearance grooves 21 for the U-bolt shank to extend on both sides of the fixed frame 2, limiting plates 3 on the front and rear sides of the U-bolt, a double-acting screw 31 at the bottom of the fixed frame 2, sliding sleeves 32 threaded on the threaded sections on both sides of the double-acting screw 31, the sliding sleeves 32 connected to the limiting plates 3, a movable through groove 11 on the worktable 1, a lifting plate 12 inside the movable through groove 11, a lifting cylinder 13 connected to the bottom of the lifting plate 12, two turntables 4 rotatably mounted on both sides of the lifting plate 12, and polishing tools mounted on the turntables 4. The light brush 41 and the rotating shaft of the turntable 4 are equipped with rotating gears. A drive gear meshes between the two rotating gears, and the drive gear is connected to a drive motor. The fixed base is composed of a lower base 22 and an upper base 5. The upper surface of the lower base 22 has a first half-groove that matches the U-bolt, and the lower surface of the upper base 5 has a second half-groove that matches the shape of the transverse connecting part. The first half-groove and the second half-groove are combined to form a fixing groove. The lower base 22 is fixed to the top of the fixed frame 2 by bolts, and the upper base is fixed to the feeding cylinder by bolts. Different upper and lower bases can be replaced to form fixing grooves of different shapes to accommodate U-bolts of different shapes. The side of the worktable 1 is equipped with a feeding rack 6, and the U-bolts are neatly arranged on the feeding rack 6. The feeding rack 6 consists of two parallel feeding rods, which are inclined downwards and forwards. The front end of each feeding rod has an upwardly bent protrusion. A top frame is located above the worktable 1, and a feeding slide rail 51 is mounted on the top frame. A movable seat 52 is slidably mounted on the feeding slide rail 51. A feeding cylinder 53 is located at the bottom of the movable seat 52, and its output end is connected to the upper base 5. The lower base 22 is mounted on the fixed frame 2. An electromagnet 54 is embedded inside the upper base 5. Two bidirectional lead screws 31 are provided, symmetrically arranged on the left and right sides of the fixed frame 2. The bidirectional lead screws 31 are driven to rotate by a rotary motor. Each turntable 4 has two polishing brushes 41, and a double-acting motor is mounted on the top of the turntable 4. A linear motor 42, a dual-moving linear motor 42, has two moving parts. Two polishing brushes 41 are fixed on the two moving parts respectively. Support rods 14 are installed on both sides of the lifting plate 12. A detection plate 7 is installed on the top of the support rods 14. The detection plate 7 has two detection holes 71. A pressure sensor is installed on the surface of the detection plate 7. A proximity sensor 23 for sensing the detection plate 7 is installed at the bottom of the fixing frame 2. Adjustment slide rails 15 are installed on both sides of the worktable 1. A sliding seat 16 is slidably installed on the adjustment slide rails 15. An adjustment cylinder 8 is fixed on the sliding seat 16. An adjustment frame 81 in the shape of a gate is fixed at the output end of the adjustment cylinder 8. A first opening 82 is provided on the front side of the adjustment frame 81. A second opening 83 is provided on the side of the adjustment frame 81 away from the adjustment cylinder 8.The adjustment frame 81 includes a push plate 811 and a pull plate 812 that are parallel to each other. The rear ends of the push plate 811 and the pull plate 812 are connected by a baffle 813. The front end of the push plate 811 protrudes beyond the front end of the pull plate 812. A pressure sensor is provided on the surface of the push plate 811. The support rod 14 is a telescopic rod.

[0025] Working process of this invention:

[0026] In the operation of this invention, the upper base 5 is first moved above the bolt, then the electromagnet is energized to attract the bolt into the upper base 5. Next, the upper base 5 is moved above the worktable 1 to assemble the upper and lower bases. Then, the electromagnet is de-energized, the upper base rises, and the bolt is placed on the lower base. Then, the bidirectional lead screw rotates, driving the limit plates 3 on both sides to move closer together, limiting the front and rear sides of the bolt. Then, the adjusting cylinder drives the adjusting frame to move closer together, aligning the left and right positions of the bolt. After the pressure sensor detects that the adjusting frames on both sides are in contact with the bolt shank, the movement stops. Then, the lifting cylinder 13 drives the lifting plate 12 to rise, allowing the bolt shank to pass through the detection hole. After the bolt successfully passes through the detection hole, the proximity sensor detects the detection plate, and the opening size is qualified. The adjusting cylinder returns to its original position, and then the drive motor starts working, causing the polishing brush to perform polishing. During polishing, the lifting cylinder can perform small-amplitude lifting movements to improve polishing efficiency.

[0027] If the bolt opening is too small, the rod cannot pass through the inspection hole and will contact the area between the inspection holes. The pressure sensor at this position will send an adjustment signal, the lifting plate 12 will return to its original position, and the adjustment frame will move forward to insert the bolt into the adjustment frame. Then, the adjustment cylinders on both sides will shorten to widen the bolt. If the opening is too small, the rod will contact the area outside the inspection hole. The pressure sensor at this position will send an adjustment signal to make the adjustment cylinder narrow the bolt. When adjusting the opening, the adjustment cylinder will extend. After the adjustment is completed, the adjustment frame will move backward and return to its original position. The alignment and inspection process will be repeated until the inspection is qualified.

[0028] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. A U-bolt grinding and polishing machine, characterized in that: The system includes a workbench (1), a mounting bracket (2) on the upper surface of the workbench (1), a mounting seat for fixing U-bolts on the top of the mounting bracket (2), a mounting groove matching the U-bolt inside the mounting seat, clearance grooves (21) for the U-bolt shank to extend on both sides of the mounting bracket (2), limiting plates (3) on the front and rear sides of the U-bolt, and a double-acting screw (31) at the bottom of the mounting bracket (2). Sliding sleeves (32) are threaded on the threaded sections on both sides of the double-acting screw (31). The sliding sleeve (32) is connected to the limiting plate (3). The worktable (1) has a movable through groove (11). The movable through groove (11) has a lifting plate (12). The bottom of the lifting plate (12) is connected to a lifting cylinder (13). Two turntables (4) are rotatably installed on both sides of the lifting plate (12). Polishing brushes (41) are installed on the turntables (4). Rotating gears are installed on the rotating shaft of the turntables (4). A drive gear meshes between the two rotating gears. The drive gear is connected to a drive motor.

2. The U-bolt grinding and polishing machine as described in claim 1, characterized in that: The fixing seat is composed of a lower base (22) and an upper base (5). The upper surface of the lower base (22) is provided with a first half-groove that matches the U-bolt, and the lower surface of the upper base (5) is provided with a second half-groove that matches the shape of the transverse connecting part. The first half-groove and the second half-groove are combined to form a fixing groove.

3. The U-bolt grinding and polishing machine as described in claim 2, characterized in that: The workbench (1) has a feeding rack (6) on its side. U-bolts are neatly arranged on the feeding rack (6). The feeding rack (6) consists of two parallel feeding rods. The feeding rods are inclined downwards and forwards. The front end of the feeding rods has an upwardly bent protrusion. The workbench (1) has a top frame above it. The top frame has a feeding slide rail (51). A movable seat (52) is slidably installed on the feeding slide rail (51). The bottom of the movable seat (52) has a feeding cylinder (53). The output end of the feeding cylinder (53) is connected to the upper base (5). The lower base (22) is installed on the fixed frame (2). An electromagnet (54) is embedded inside the upper base (5).

4. The U-bolt grinding and polishing machine as described in claim 1, characterized in that: The bidirectional lead screw (31) is provided in two parts, and the two bidirectional lead screws (31) are symmetrically arranged on the left and right sides of the fixed frame (2). The bidirectional lead screws (31) are driven to rotate by a rotating motor.

5. The U-bolt grinding and polishing machine as described in claim 1, characterized in that: Each turntable (4) is provided with two polishing brushes (41). A double-moving linear motor (42) is installed on the top of the turntable (4). The double-moving linear motor (42) is provided with two moving parts. The two polishing brushes (41) are fixed on the two moving parts respectively.

6. The U-bolt grinding and polishing machine as described in claim 1, characterized in that: The lifting plate (12) is equipped with support rods (14) on both sides, and a detection plate (7) is installed on the top of the support rods (14). The detection plate (7) has two detection holes (71). The surface of the detection plate (7) is equipped with a pressure sensor. The bottom of the fixed frame (2) is equipped with a proximity sensor (23) for sensing the detection plate (7). The worktable (1) is equipped with adjusting slide rails (15) on both sides. A sliding seat (16) is slidably installed on the adjusting slide rails (15). An adjusting cylinder (8) is fixed on the sliding seat (16). An adjusting frame (81) in the shape of a door is fixed at the output end of the adjusting cylinder (8). A first opening (82) is provided on the front side of the adjusting frame (81). A second opening (83) is provided on the side of the adjusting frame (81) away from the adjusting cylinder (8).

7. The U-bolt grinding and polishing machine as described in claim 6, characterized in that: The adjustment frame (81) includes a push plate (811) and a pull plate (812) that are parallel to each other. The rear end of the push plate (811) and the rear end of the pull plate (812) are connected by a baffle (813). The front end of the push plate (811) protrudes from the front end of the pull plate (812). A pressure sensor is provided on the surface of the push plate (811). The support rod (14) is a telescopic rod.

Images