Clamping device for processing end face hole of plate-like wheel support

Abstract

This invention belongs to the field of wheel bracket technology, and particularly relates to a clamping device for machining end holes in a plate-shaped wheel bracket. The clamping device includes an upwardly extending support block that mates with the inner shape of the plate-shaped wheel bracket. The upper end of the support block has a support surface for contacting the inner wall of the end plate of the plate-shaped wheel bracket. The upper side of the support block has a stop block for contacting the side edge of the end plate of the plate-shaped wheel bracket. Above the support block is an upper clamping block that can move up and down. The upper clamping block has a first clearance groove with a lateral opening near the support block, extending vertically through the upper clamping block. The first clearance groove is used to avoid milling cutters. The upper end of the support block has a second clearance groove with an upward opening for avoiding milling cutters. The purpose of this invention is to provide an advantage that facilitates milling of the end holes in a plate-shaped wheel bracket with a milling cutter.

Description

Technical Field

[0001] This invention belongs to the field of wheel bracket technology, and particularly relates to a clamping device for machining end holes 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 rotatably connected to the wheel. The end plate has end holes that are rotatably connected to the frame or fixed to the rudder. During the manufacturing process of the plate wheel bracket, the end holes of the end plate need to be milled. During the processing, the plate wheel bracket needs to be fixed by a fixture.

[0003] Chinese Patent Application No. 202021992222.3 discloses a welding fixture for a bicycle frame and wheel fork, including a base, a support block and a clamping post on the base, and a U-shaped groove on the side of the support block facing away from the base, into which the bicycle frame and wheel fork are fitted. The base is provided with a first pressing mechanism and a second pressing mechanism. The first pressing mechanism is used to press the bicycle frame and wheel fork into the U-shaped groove, and the second pressing mechanism is used to press the claw hook onto the clamping post. A top-tightening plate is provided on the base, and the support block is located between the clamping post and the top-tightening plate. The top-tightening plate is used to press the bicycle frame and wheel fork against the support block.

[0004] When the fixture described above is used for milling the end face of a plate wheel bracket, the clamping plate presses the plate wheel bracket against the support block, and the clamping plate blocks the milling cutter, preventing the milling cutter from milling the end face of the plate wheel bracket. Summary of the Invention

[0005] The purpose of this invention is to provide a clamping device for milling the end face holes of a plate wheel bracket, which facilitates milling the end face holes of the plate wheel bracket with a milling cutter.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a clamping device for machining the end face of a plate-shaped wheel bracket, comprising an upwardly extending support block that matches the inner shape of the plate-shaped wheel bracket, the upper end of the support block having a support surface for contacting the inner wall of the end plate of the plate-shaped wheel bracket, the upper side of the support block having a stop block for contacting the side of the end plate of the plate-shaped wheel bracket, an upper pressing block that can move up and down above the support block, the upper pressing block having a lateral opening near the support block and a first clearance groove that extends vertically through the upper pressing block, the first clearance groove being used to avoid milling cutters, and the upper end of the support block having an upwardly opening second clearance groove for avoiding milling cutters.

[0007] In use, the plate wheel bracket is placed on the support block, and the side of the end plate of the plate wheel bracket abuts against the stop block. Then, the upper end pressing block presses down on the upper end face of the plate wheel bracket to press the plate wheel bracket tightly. After that, the end face of the plate wheel bracket is milled by a milling cutter.

[0008] The plate-shaped wheel bracket is placed upright on the support block. The up-and-down movement of the upper clamping block can be achieved by a cylinder, hydraulic cylinder, or electric push rod.

[0009] This invention uses an upper clamping block to clamp and fix the upper end of the plate-shaped wheel bracket. The stop block contacts the side of the end plate, thereby limiting the position of the plate-shaped wheel bracket. At the same time, the upper clamping block is provided with a first clearance groove to avoid the milling cutter, so that the milling cutter can mill the end face of the plate-shaped wheel bracket. The upper end of the support block is provided with a second clearance groove to prevent the milling cutter from hitting the upper end of the support block, thereby facilitating the milling cutter to mill the end face of the plate-shaped wheel bracket.

[0010] Preferably, the number of the support blocks is two, and they are symmetrically arranged on both sides of the upper clamping block. The distance between the support surfaces of the two support blocks is less than the length of the upper clamping block.

[0011] The distance between the two support surfaces is less than the length of the upper clamping block, which allows the upper clamping block to simultaneously clamp the upper surfaces of the two plate-shaped wheel brackets, saving costs while making the structure more compact.

[0012] Preferably, the support block is disposed on the base plate, and the two side walls of the support block are formed with side end positioning surfaces for contacting the inner wall of the side plate of the plate-shaped wheel bracket. The base plate is provided with lower end positioning surfaces at the lower ends of both sides of the support block for contacting the lower end side edge of the side plate of the plate-shaped wheel bracket. The circumferential inner edge shape of the lower end positioning surface is the same as the circumferential outer edge shape of the lower end side edge of the side plate of the plate-shaped wheel bracket.

[0013] The side positioning surface positions the side of the plate-shaped wheel bracket, further defining its position during placement and restricting the position of both sides. The lower positioning surface restricts the position of the lower edge of the side plate. Typically, the outer edge of the lower edge of the side plate is curved, so the inner circumferential edge of the lower positioning surface is also curved. When the plate-shaped wheel bracket is placed upright, the lower positioning surface restricts its movement, ensuring that the end face of the end plate does not shift during milling.

[0014] Preferably, the substrate is provided with side end clamping blocks on both sides. The side end clamping blocks are located to the side of the support blocks and can move closer to or away from the support blocks. The length of the side end clamping blocks is greater than the distance between the lower ends of the two support blocks.

[0015] The length of the side-end clamping block is greater than the distance between the lower ends of the two support blocks, allowing one side-end clamping block to simultaneously clamp the lower ends of two plate-shaped wheel brackets, saving costs and making the structure more compact. Furthermore, the clamping of the side ends of the plate-shaped wheel brackets ensures that the inner wall of the side plate of the plate-shaped wheel bracket can contact the side-end positioning surface of the support block, resulting in better positioning of the plate-shaped wheel brackets. The movement of the side-end clamping block can be achieved using cylinders, hydraulic cylinders, or similar mechanisms.

[0016] Preferably, the upper clamping block is equipped with a first driver that drives the upper clamping block to move, and the side clamping block is equipped with a second driver that drives the side clamping block to move. The substrate has a cavity inside for placing the first driver and the second driver.

[0017] Both the first and second drivers are located within a cavity inside the substrate, which saves space.

[0018] Preferably, the substrate has laterally extending guide members on both side walls, and the guide members have guide surfaces that contact the side end clamping blocks.

[0019] The movement path of the side end clamping block can be guided by setting a guide member. The guide member can be columnar, passing through the side end clamping block and slidingly engaging with it; the guide member can also be block-shaped, contacting the circumferential outer wall of the side end clamping block.

[0020] Preferably, the base plate has clearance grooves on both sides for making way for the side edges of the side plates of the plate-shaped wheel bracket.

[0021] The side edge of the side plate of the plate wheel bracket is usually a blank surface. If the side edge of the side plate of the plate wheel bracket is in direct contact with the base plate, the blank surface will have a protrusion, causing the entire plate wheel bracket to shift. By setting a clearance groove, the side edge of the side plate of the plate wheel bracket can be avoided, thus preventing the plate wheel bracket from shifting.

[0022] Preferably, locking blocks are provided on both sides of the substrate, the locking blocks extend toward the support block side, the locking blocks are provided with locking members, the locking members are located on both sides of the side positioning surface, and the ends of the locking members facing the side positioning surface are provided with balls, which can elastically extend and retract.

[0023] The locking components are located on both sides of the side positioning surface. When the plate-shaped wheel bracket is placed on the support block, the ball bearings of the locking components apply pressure to both sides of the plate-shaped wheel bracket, thereby pre-clamping the plate-shaped wheel bracket and facilitating the upper and side clamping blocks to press the plate-shaped wheel bracket. The ball bearings can rotate, thus reducing friction with the plate-shaped wheel bracket and facilitating its placement.

[0024] The present invention has the following advantages: the plate wheel bracket is clamped by the side clamping block and the upper clamping block, thereby clamping and fixing the upper and side ends of the plate wheel bracket and preventing the plate wheel bracket from shifting; at the same time, the upper clamping block is provided with a first clearance groove to avoid the milling cutter, so that the milling cutter can mill the end face of the plate wheel bracket. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention when pressing the plate-shaped wheel bracket.

[0026] Figure 2 for Figure 1 A schematic diagram of the structure after removing the side clamping blocks.

[0027] Figure 3 for Figure 2 A schematic diagram of the structure after removing the plate-shaped wheel bracket.

[0028] Figure 4 for Figure 1 A schematic diagram of the structure after removing the substrate and support blocks.

[0029] Figure 5 for Figure 4 A schematic diagram of the structure after removing the plate-shaped wheel bracket.

[0030] Figure 6 This is a schematic diagram of the locking block.

[0031] Reference numerals in the attached figures: base plate 1, support block 2, second clearance groove 21, positioning groove 22, first side end positioning surface 22, second side end positioning surface 23, support surface 24, upper end positioning surface 25, clearance groove 26, upper end pressing block 3, lower end positioning surface 27, first clearance groove 31, first driver 32, first telescopic rod 33, side end pressing block 4, second driver 41, second telescopic rod 411, guide member 42, locking block 5, ball 51, locking member 52, bolt 53, stop block 6, plate-shaped wheel bracket 100, end hole 101. Detailed Implementation

[0032] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0033] like Figures 1 to 3As shown, this embodiment discloses a clamping device for machining the end face of a plate-shaped wheel bracket, including a base plate 1. Two upwardly extending support blocks 2 are provided on the base plate 1, symmetrically arranged and integrally formed. An upwardly extending stop block 6 is provided at the upper end of the base plate 1, located on both sides of the upper end of the support block 2. The stop block 6 has an upper positioning surface 25 for contacting the side edge of the end plate of the plate-shaped wheel bracket 100. The upper end of the support block 2 has a support surface 24 for contacting the inner wall of the upper end of the plate-shaped wheel bracket 100. The upper end of the support block 2 has an upwardly opening second clearance groove 21 for avoiding milling cutters. An upper clamping block 3 is provided above the two support blocks 2. The length of the upper clamping block 3 is greater than the distance between the support surfaces 24 of the two support blocks 2. The upper clamping block 3 has lateral openings near the sides of the support blocks 2, and a first clearance groove 31 extends vertically through the upper clamping block 3. The groove wall of the first clearance groove 31 is an arc surface.

[0034] like Figure 2 and Figure 3 As shown, the base plate 1 has clearance grooves 26 on both sides for making way for the side edges of the side plates of the plate-shaped wheel bracket 100. The support block 2 is located between the two clearance grooves 26. The side walls of the support block 2 have side end positioning surfaces for contacting the inner walls of the two sides of the plate-shaped wheel bracket 100. The side end positioning surfaces include a first side end positioning surface 22 and a second side end positioning surface 23. The second side end positioning surface 23 is located above the first side end positioning surface 22, and the clearance grooves 26 are located outside the second side end positioning surface 23. The base plate 1 has lower end positioning surfaces 27 on both sides of the lower end of the support block 2 for contacting the circumferential outer wall of the side edge of the lower end of the side plate of the plate-shaped wheel bracket 100. The circumferential inner edge cross-sectional shape of the lower end positioning surface 27 is the same as the circumferential outer edge cross-sectional shape of the side edge of the lower end of the side plate of the plate-shaped wheel bracket 100. A first side-end positioning surface 22 is formed on the lower side wall of the support block 2 for contacting the inner wall of the lower end of the side plate of the plate-shaped wheel bracket 100, and the lower end positioning surface 27 is located outside the first side-end positioning surface 22.

[0035] like Figures 2 to 5 As shown, the lower end of the upper clamping block 3 is fixedly connected to a vertically arranged first telescopic rod 33. The lower end of the first telescopic rod 33 is connected to a first driver 32, which drives the first telescopic rod 33 to perform telescopic movement, thereby realizing the up-and-down movement of the upper clamping block 3. The first driver 32 is a cylinder. Both the first driver 32 and the first telescopic rod 33 are disposed inside the substrate 1, which has a chamber (not shown in the figure) for housing the first driver 32 and the first telescopic rod 33.

[0036] Side clamping blocks 4 are provided on both sides of the substrate 1. The side clamping blocks 4 are located on both sides of the lower end of the support block 2, and the length of the side clamping blocks 4 is greater than the distance between the lower ends of the support blocks 2. The side clamping blocks 4 are equipped with a second actuator 41. The side clamping blocks 4 and the second actuator 41 are connected by a second telescopic rod 411. The side clamping blocks 4 move closer to or away from the support block 2 under the drive of the second actuator 41 via the second telescopic rod 411. The second actuator 41 is located inside the substrate 1, and the substrate 1 has a cavity (not shown in the figure) for placing the second actuator 41. Guide members 42 are provided on both side walls of the substrate 1. The guide members 42 are located at the upper end of the side clamping blocks 4. The lower end surface of the guide member 42 is a guide surface. The guide surface of the guide member contacts the upper end surface of the side clamping blocks 4 and guides the side clamping blocks 4. The second actuator 41 is a hydraulic cylinder.

[0037] like Figure 2 and Figure 6 As shown, two locking blocks 5 are provided on both sides of the base plate 1. The locking blocks 5 are fixed to the base plate 1 by bolts 53. The locking blocks 5 extend towards the support block 2. The end of the locking blocks 5 is provided with a locking member 52. The locking member 52 is located on both sides of the second side end positioning surface 23 of the support block. The end of the locking member 52 facing the support block 2 is provided with a ball 51. The locking member 52 is provided with a spring (not shown in the figure) inside. The ball 51 can elastically contract under the action of the spring.

[0038] During use, the upper clamping block 3 rises, and the side clamping block 4 moves away from the support block 2. The operator places the two plate-shaped wheel brackets 100 on the support block 2 respectively, and uses the locking element 52 to pre-position the plate-shaped wheel brackets 100. Then, the upper clamping block 3 descends to press the upper end of the plate-shaped wheel bracket 100, and the side clamping block 4 presses the side end of the plate-shaped wheel bracket 100, thereby completing the fixation of the upper and side ends of the plate-shaped wheel bracket 100. Finally, the end face 101 of the plate-shaped wheel bracket 100 is milled using a milling cutter.

Claims

1. A clamping device for machining end holes in a plate-shaped wheel bracket, characterized in that: The system includes an upwardly extending support block that mates with the inner shape of a plate-shaped wheel bracket. The upper end of the support block has a support surface for contacting the inner wall of the end plate of the plate-shaped wheel bracket. The upper side of the support block has a stop block for contacting the side edge of the end plate of the plate-shaped wheel bracket. Above the support block is an upper end clamping block that can move vertically. The upper end clamping block has a lateral opening near the support block and a first clearance groove that extends vertically through the upper end clamping block. The first clearance groove is used to avoid a milling cutter. The upper end of the support block has a second clearance groove that opens upwards and is used to avoid a milling cutter. The support block is mounted on a base plate, and its two sidewalls are formed for contact with the plate-shaped wheel... The bracket has a side-end positioning surface that contacts the inner wall of the side plate. The base plate has a lower end positioning surface at the lower end of both sides of the support block for contacting the lower side edge of the plate-shaped wheel bracket side plate. The inner circumferential shape of the lower end positioning surface is the same as the outer circumferential shape of the lower side edge of the plate-shaped wheel bracket side plate. The base plate has side-end clamping blocks on both sides. The side-end clamping blocks are located to the side of the support block and can move closer to or away from the support block. The length of the side-end clamping block is greater than the distance between the lower ends of the two support blocks. There are two support blocks, which are symmetrically arranged on both sides of the upper clamping block. The distance between the support surfaces of the two support blocks is less than the length of the upper clamping block.

2. The clamping device for machining end holes of the plate-shaped wheel bracket according to claim 1, characterized in that: The upper clamping block is equipped with a first driver that drives the upper clamping block to move, and the side clamping block is equipped with a second driver that drives the side clamping block to move. The interior of the substrate is provided with a chamber for placing the first driver and the second driver.

3. The clamping device for machining end holes of a plate-shaped wheel bracket according to claim 1 or 2, characterized in that: The substrate has laterally extending guide members on both side walls, and the guide members have guide surfaces that contact the side end clamping blocks.

4. The clamping device for machining end holes of a plate-shaped wheel bracket according to claim 1 or 2, characterized in that: The base plate has clearance grooves on both sides for making way for the side edges of the side plates of the plate-shaped wheel bracket.

5. The clamping device for machining end holes of a plate-shaped wheel bracket according to claim 1 or 2, characterized in that: Locking blocks are provided on both sides of the substrate. The locking blocks extend toward the support block side. Locking members are provided on the locking blocks. The locking members are located on both sides of the side positioning surface. The end of the locking member facing the side positioning surface is provided with a ball. The ball can elastically extend and retract.

Images