Clamping device for side machining of plate wheel bracket

Abstract

This invention belongs to the field of wheel bracket processing technology, and particularly relates to a clamping device for processing the side of a plate-shaped wheel bracket. The clamping device includes a base plate, on which an upwardly extending support block is provided that mates with the inner shape of the plate-shaped wheel bracket. A stepped surface for supporting the side of the plate-shaped wheel bracket is formed between the lower end of the support block and the base plate. The base plate has a clamping member on the end side of the support block for pressing the end plate of the plate-shaped wheel bracket, and clamping members on both sides of the support block for clamping the side plate of the plate-shaped wheel bracket. The purpose of this invention is to provide an advantage in avoiding vibration and resulting in chatter marks during milling of the plate-shaped wheel bracket, thereby improving the yield rate of plate-shaped wheel bracket processing.

Description

Technical Field

[0001] This invention belongs to the field of wheel bracket processing technology, and particularly relates to a clamping device for processing the side of a plate-shaped wheel bracket. Background Technology

[0002] The plate wheel bracket is U-shaped and consists of two side plates and an end plate connecting the two side plates. The lower ends of the two side plates are used to rotate and connect with the wheel. The end plate is rotated and connected to the frame or fixed to the rudder. During the manufacturing process of the plate wheel bracket, the sides of the side plates and end plates need to be milled. During the processing, the plate wheel bracket needs to be fixed by a fixture.

[0003] Chinese Patent Application No. 201821802072.8 discloses an auxiliary clamp for welding the front fork of a wheelchair, including a base plate. A positioning clamping unit is installed on the base plate. The positioning clamping unit has an upper clamping part and a lower clamping part. The upper clamping part has a column. A positioning plate is installed on the upper end of the column. The positioning plate has a pair of mounting grooves that are spaced apart from each other on the left and right. A cylindrical pin is provided in the mounting grooves that pass through the outside of the positioning plate and into the mounting grooves. The mounting grooves have a pair of mounting grooves that are spaced apart from each other on the left and right. The lower clamping part has a positioning pin installed on the base plate. A pad is provided on the upper end of the positioning pin. A first screw is provided on the upper end of the pad that passes through the pad and is screwed into the positioning pin.

[0004] The above solution requires inserting a cylindrical pin into the axle hole of the fork and screwing the first screw into the locating pin, which passes through the mounting hole at the end of the fork, thus fixing the upper and lower ends of the fork. However, when this fixture is used for milling plate-shaped wheel brackets, the gap between the fixing pin and the axle hole causes vibration in the plate-shaped wheel bracket during milling, easily leading to the formation of vibration marks and resulting in a high defect rate for the machined plate-shaped wheel brackets. Summary of the Invention

[0005] The purpose of this invention is to provide a clamping device for side processing of plate wheel brackets that avoids vibration and generates chatter marks during milling of plate wheel brackets, thereby improving the yield of plate wheel brackets.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a clamping device for processing the side of a plate-shaped wheel bracket, comprising a base plate, on which a support block extending upward and conforming to the inner shape of the plate-shaped wheel bracket is provided, wherein a stepped surface for supporting the side of the plate-shaped wheel bracket is formed between the lower end of the support block and the base plate; the base plate is provided with a clamping member for pressing the end plate of the plate-shaped wheel bracket on the end side of the support block, and the base plate is provided with clamping members for clamping the side plate of the plate-shaped wheel bracket on both sides of the support block.

[0007] In use, the plate-shaped wheel bracket is placed on the stepped surface of the base plate, so that the side edges of the end plate and side plate of the plate-shaped wheel bracket to be processed are exposed. Then, the clamping component clamps the end plate of the plate-shaped wheel bracket, and the clamping component clamps the side plate of the plate-shaped wheel bracket. Then, the plate-shaped wheel bracket is milled by a milling cutter.

[0008] The plate-shaped wheel bracket is placed horizontally on the base plate. The clamping and pressing components can be any existing type of cylinder or gripper. The support block's fits the inner shape of the plate-shaped wheel bracket, meaning the outer shape of the support block is the same as the inner shape of the plate-shaped wheel bracket, and the support block has a contact surface that contacts the inner wall of the plate-shaped wheel bracket.

[0009] This solution uses clamping and clamping components to secure the end plates and side plates of the plate-shaped wheel bracket, bringing the bracket into contact with the support block and thus fixing it in place. This prevents the formation of vibration marks due to gaps between the pin and the hole in the plate-shaped wheel bracket, improving the yield rate of the plate-shaped wheel bracket. Simultaneously, the support block, while positioning the plate-shaped wheel bracket, also prevents deformation of the bracket during clamping and clamping.

[0010] Preferably, there are two support blocks arranged symmetrically, with the two support blocks located on both sides of the clamping member. The clamping member includes a movable block, a first driver, and two clamping blocks that correspond one-to-one with the support blocks. The movable block is located between the two clamping blocks, and there is a mutually cooperating inclined surface between the movable block and the two clamping blocks. The movable block moves up and down under the action of the first driver to enable the clamping blocks to move closer to or away from the support blocks.

[0011] The inclined surface of the movable block abuts against the inclined surface of the clamping block, causing the clamping block to move, thereby clamping or releasing the end plates of the plate-shaped wheel bracket. One clamping component can clamp the end plates of two plate-shaped wheel brackets, saving production costs and making the structure more compact.

[0012] Preferably, the clamping block has a positioning groove on the side facing the support block that opens towards the support block, and the opening of the positioning groove is open.

[0013] The positioning groove is used to contact and position the outer wall of the end plate of the plate wheel bracket. At the same time, the opening of the positioning groove is open, which has a guiding function when pressing the end plate of the plate wheel bracket. It can better contact the end plate of the plate wheel bracket, increase the contact area, and have a better pressing effect, further avoiding the generation of vibration marks.

[0014] Preferably, the lower ends of the clamping block and the movable block are provided with a mating block, and the mating block is provided with a sliding groove that slides with the clamping block.

[0015] By setting a sliding groove, the movement path of the clamping block can be restricted, so that when the clamping block clamps the end plate of the plate wheel bracket, the upper end of the plate wheel bracket is subjected to more uniform force.

[0016] Preferably, the clamping member includes a jaw, a driving block, and a second driver. The jaw is rotatably connected to the substrate. The upper end of the jaw is located on both sides of the support block, and the lower end of the jaw contacts the driving block. The width of the driving block gradually increases from the side closer to the jaw to the side farther from the jaw. Under the action of the second driver, the driving block moves closer to or farther from the jaw to achieve clamping or releasing of the jaw.

[0017] The width of the drive block gradually increases from the side closer to the gripper to the side farther away from the gripper. The closer the drive block is to the gripper, the more it presses outward against the gripper, causing the gripper to rotate and thus clamping the two sides of the plate-shaped wheel bracket at the upper end of the gripper. The drive block simultaneously drives the two grippers to clamp or release the side plates via the second driver, resulting in better synchronization and more even force distribution on the two side plates.

[0018] Preferably, the substrate has a cavity inside for placing the drive block and the second driver.

[0019] Both the driving block and the second driver are located in the cavity inside the substrate, thereby reducing the volume and making the structure more compact.

[0020] Preferably, the substrate is equipped with a rotation driver, the driving end of which is fixedly connected to both ends of the substrate, and the rotation driver drives the substrate to rotate.

[0021] The side plate of the plate-shaped wheel bracket is provided with weight reduction holes and wheel axle holes for rotatable connection with the axle. The base plate can rotate, so that a milling cutter can mill the weight reduction holes and wheel axle holes on the side plate, increasing the versatility of the device.

[0022] Preferably, the support block has lateral openings on both sides for making way for the milling cutter, and first clearance grooves and clearance holes.

[0023] The first clearance groove and clearance hole can prevent the milling cutter from hitting the side wall of the support block when machining the weight reduction hole and wheel axle hole of the side plate.

[0024] Preferably, the upper end of the gripper is provided with a second relief groove near the first relief groove or relief hole for making way for the milling cutter.

[0025] The second clearance groove can prevent the milling cutter from hitting the clamping jaws when milling wheel shaft holes or weight reduction holes.

[0026] This invention has the following advantages: By clamping the end plate and side plate of the plate-shaped wheel bracket with clamping and pressing components, the plate-shaped wheel bracket is fixed, avoiding the generation of vibration marks due to gaps between the pin and the hole in the plate-shaped wheel bracket, thus improving the processing yield of the plate-shaped wheel bracket. Simultaneously, the support block, while positioning the plate-shaped wheel bracket, also prevents deformation of the plate-shaped wheel bracket when clamped by the clamping and pressing components. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention.

[0028] Figure 2 This is an enlarged view of the present invention when fixing the plate-shaped wheel bracket.

[0029] Figure 3 This is an enlarged view of the present invention without the plate-shaped wheel bracket.

[0030] Figure 4 This is a schematic diagram of the structure of the present invention after the substrate is removed.

[0031] Figure 5 This is a schematic diagram of the structure of the clamping component of the present invention.

[0032] Figure 6 This is a cross-sectional view of the clamping component of the present invention.

[0033] Figure 7 This is a cross-sectional view of the clamping component of the present invention.

[0034] Reference numerals in the attached figures: base plate 1, rotary actuator 11, stepped surface 12, support block 2, first contact surface 21, second contact surface 22, gripper 31, rotating shaft 311, second clearance groove 312, second actuator 32, telescopic rod 321, drive block 33, movable block 41, drive component 411, first clamping block 42, second clamping block 43, first actuator 44, mating block 45, sliding groove 451, clearance hole 51, first clearance groove 52, plate-shaped wheel bracket 100, wheel axle hole 101, weight reduction hole 102, side to be processed 103. Detailed Implementation

[0035] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0036] like Figures 1 to 3 As shown, this embodiment discloses a clamping device for processing the side of a plate-shaped wheel bracket, including a base plate 1. Both ends of the base plate 1 are fixedly connected to the output end of a rotary driver 11. The rotary driver 11 drives the base plate 1 to rotate. The base plate 1 is provided with a clamping member for clamping the plate-shaped wheel bracket 100 and two clamping members.

[0037] like Figure 2 and Figure 3 As shown, two upwardly extending support blocks 2 are provided on the base plate 1, which are fitted with the inner shape of the plate-shaped wheel bracket 100. The two support blocks 2 are located on the left and right sides of the clamping member and are symmetrically arranged. A stepped surface 12 for supporting the side of the plate-shaped wheel bracket 100 is provided between the base plate 1 and the support blocks 2. The stepped surface 12 is located on the circumferential outer side of the lower end of the support block 2. The end of the support block 2 facing the clamping member has a first contact surface 21, and the side end of the support block 2 facing the clamping member has a second contact surface 22. The first contact surface 21 is used to contact the inner wall of the end plate of the plate-shaped wheel bracket 100, and the second contact surface 22 is used to contact the inner walls of the two side plates of the plate-shaped wheel bracket 100.

[0038] The lower end of the support block 2 is provided with a lateral opening and a clearance hole 51 for making way for the milling cutter. When the plate wheel bracket 100 is placed on the support block 2, the wheel axle hole 101 of the plate wheel bracket 100 is aligned with the clearance hole 51. The support block 2 is also provided with a lateral opening and a first clearance groove 52 that extends upward through the support block 2. The first clearance groove 52 is used to make way for the milling cutter. When the plate wheel bracket 100 is placed on the support block 2, the weight reduction hole 102 of the plate wheel bracket 100 is aligned with the first clearance groove 52.

[0039] like Figure 4 , Figure 5 and Figure 7 As shown, the clamping component includes a movable block 41, two clamping blocks, and a first driver 44 that drives the movable block 41 to move up and down. The base plate 1 has a chamber (not shown) for housing the first driver 44. The movable block 41 is located between the two clamping blocks. The clamping blocks include a clamping block part 42 and a clamping block part 43. The clamping block part 42 and the movable block 41 have mutually cooperating inclined surfaces. The width of the movable block 41 gradually decreases from top to bottom, and the width of the clamping block part 42 gradually increases from top to bottom. The clamping block part 43 is fixed together with the clamping block part 42. The end of the clamping block part 43 facing the support block 2 has a positioning groove 431 that opens towards the support block 2. The opening of the positioning groove 431 is open. The lower ends of the movable block 41 and the clamping blocks have a mating block 45. The mating block 45 has an upward-opening sliding groove 451. The lower end of the clamping block part 42 is located in the sliding groove 451 and slides in cooperation with the sliding groove 451. The movable block 41 is equipped with a driving component 411, which is threaded into the movable block 41. The lower end of the driving component 411 passes downward through the mating block 45 and connects to the output end of the first driver 44. When the first driver 44 causes the driving component 411 to move downward, the movable block 41 moves downward, causing the clamping block to move toward the support blocks 2 on both sides to clamp the end plate of the plate-shaped wheel bracket 100. The first driver 44 is a cylinder.

[0040] like Figure 4 and Figure 6As shown, there are two clamping components located below the support block 2. Each clamping component includes a jaw 31, a drive block 33, and a second actuator 32. The telescopic rod 321 of the second actuator 32 is fixedly connected to the lower end of the drive block 33. The width of the drive block 33 gradually increases from the side closer to the jaw 31 to the side farther from the jaw 31. The jaw 31 is rotatably connected to the base plate 1 via a rotating shaft 311, which is fixed to the base plate 1 with bolts. The upper ends of the jaw 31 are located on both sides of the second contact surface 22 of the support block 2, and the lower ends of the jaw 31 contact the drive block 33. The contact surface between the jaw 31 and the drive block 33 is an arc surface. When the second actuator 32 moves the drive block 33 upward, the drive block 33 pushes the lower ends of the jaw 31 outward, causing the upper ends of the jaw 31 to close inward and clamp the plate-shaped wheel bracket 100. The upper end of the gripper 31 is provided with a second relief groove 312 on the side near the relief hole 51 for making way for the milling cutter.

[0041] In use, the operator places two plate-shaped wheel brackets 100 on the stepped surface 12 of the base plate 1, and then clamps the end plate and side plate of the plate-shaped wheel brackets 100 with clamping members and two clamping members. After the plate-shaped wheel brackets 100 are clamped, the side 103 to be processed of the plate-shaped wheel brackets 100 is milled with a milling cutter. After the side 103 to be processed is milled, the rotary driver 11 drives the base plate 1 to rotate 90° so that the milling cutter can mill the weight reduction hole 102 and the wheel axle hole 101 of one side plate of the plate-shaped wheel brackets 100. Then the rotary driver 11 drives the base plate 1 to rotate again so that the milling cutter can mill the weight reduction hole 102 and the wheel axle hole 101 of the other side plate of the plate-shaped wheel brackets 100, thereby completing the milling of the plate-shaped wheel brackets 100.

Claims

1. A clamping device for machining the side of a plate-shaped wheel bracket, characterized in that: The system includes a base plate, on which an upwardly extending support block is provided that mates with the inner shape of a plate-shaped wheel bracket. A stepped surface is formed between the lower end of the support block and the base plate to support the side of the plate-shaped wheel bracket. The base plate has a clamping member on the end side of the support block for pressing the end plate of the plate-shaped wheel bracket, and clamping members on both sides of the support block for clamping the side plates of the plate-shaped wheel bracket. Two support blocks are symmetrically arranged, each located on one side of a clamping member. The clamping member includes a movable block, a first actuator, and two clamping blocks corresponding to the support blocks. The movable block is located between the two clamping blocks, and a mutually cooperating inclined surface is provided between the movable block and the two clamping blocks. The movable block moves up and down under the action of the first actuator to... The clamping block moves closer to or away from the support block. The clamping block has a positioning groove on its side facing the support block, with the groove opening into the support block. The clamping member includes a jaw, a driving block, and a second driver. The jaw is rotatably connected to the base plate. The upper end of the jaw is located on both sides of the support block, and the lower end of the jaw contacts the driving block. The width of the driving block gradually increases from the side closer to the jaw to the side farther from the jaw. Under the action of the second driver, the driving block moves closer to or away from the jaw to clamp or release the jaw. The support block has lateral openings on both sides for displacement of the milling cutter, including a first clearance groove and a clearance hole. The upper end of the jaw, near the first clearance groove or clearance hole, has a second clearance groove for displacement of the milling cutter.

2. The clamping device for processing the side of the plate-shaped wheel bracket according to claim 1, characterized in that: The lower ends of the clamping block and the movable block are provided with mating blocks, and the mating blocks are provided with sliding grooves that slide with the clamping block.

3. The clamping device for processing the side of the plate-shaped wheel bracket according to claim 1, characterized in that: The substrate has a cavity inside for placing the drive block and the second driver.

4. The clamping device for processing the side of the plate-shaped wheel bracket according to claim 1, characterized in that: The substrate is equipped with a rotation driver, the driving end of which is fixedly connected to both ends of the substrate, and the rotation driver drives the substrate to rotate.

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