Automatic clamp for brake drum machining

Abstract

The utility model relates to brake drum machining clamp technical field, and disclose a kind of automatic clamp for brake drum machining, including shell and support disc, the support disc is installed in the upper end of shell, three the guide rail with the axial annular array of support disc is arranged in the upper end surface of support disc, the upper end of support disc is also equipped with three auxiliary frame, the slide bar sliding connection is in the upper end of guide rail, one end of the slide bar is equipped with clamping head, the clamping head is used to resist in the inner wall of brake drum, the driving device is set in the upper end of support disc, and the driving device is used to drive slide bar sliding. The utility model is through three slide bars with the axial annular array of support disc to be arranged in the upper end surface of support disc, and three slide bars are evenly distributed, so when three slide bars slide simultaneously, the position of brake drum can be squeezed to change, so that the axial center of brake drum and the axial center of support disc keep uniform position, and then realize automatic clamping calibration axial center.

Description

Technical Field

[0001] This utility model relates to the field of brake drum processing fixtures, specifically an automatic fixture for brake drum processing. Background Technology

[0002] Drum brakes utilize a brake transmission mechanism to press the brake friction pads against the inside of the brake drum, thereby generating braking force. This allows the wheels to slow down or stop within the shortest distance as needed, ensuring driving safety and preventing the vehicle from sliding automatically when parked. The processing of brake drums requires spraying rust-preventive oil onto the inner wall, and they are generally held in place by clamps.

[0003] Existing brake drum painting processes require fixing with a fixture and then spraying with a nozzle. Since brake drums are round, existing automatic fixtures for brake drum processing cannot automatically clamp and calibrate the shaft center, and the clamping is not secure. Utility Model Content

[0004] This utility model provides an automatic clamp for processing brake drums, which has the advantages of automatically clamping and calibrating the shaft and achieving good clamping effect.

[0005] This utility model provides the following technical solution: an automatic fixture for processing brake drums, comprising:

[0006] case;

[0007] A support plate, which is mounted on the upper end of the housing;

[0008] Three guide rails are arranged in a circular array around the axis of the support disk on the upper surface of the support disk, and three auxiliary frames are also installed on the upper end of the support disk.

[0009] A slide rod is slidably connected to the upper end of the guide rail, and a clamping head is installed at one end of the slide rod. The clamping head is used to abut against the inner wall of the brake drum.

[0010] A driving device is disposed at the upper end of the support plate, and the driving device is used to drive the slide bar to slide.

[0011] As an optional solution for the automatic fixture for processing brake drums according to this utility model, a protective cover is also installed on the upper end of the support plate, and one end of the slide rod and the guide rail are both inserted into the interior of the protective cover.

[0012] As an optional solution for the automatic fixture for processing brake drums according to the present invention, wherein: a rotating disk is rotatably connected inside the protective cover, and an arc groove is provided at the upper end of the rotating disk, the arc groove penetrating the rotating disk;

[0013] One end of the slide rod is rotatably connected to a roller, which is slidably connected inside the arc groove.

[0014] As an optional solution for the automatic clamping fixture for processing brake drums according to the present invention, the upper end of the guide rail is provided with a sliding groove, and the lower end of the clamping head is also equipped with a slider, which is slidably connected inside the sliding groove.

[0015] As an optional solution for the automatic fixture for processing brake drums according to the present invention, the driving device includes a cylinder installed inside the housing, a push plate is installed at one end of the cylinder, and a rack is installed on one side of the push plate;

[0016] A shaft is mounted at the lower end of the rotating disk, and a gear is mounted at the lower end of the shaft. The gear is rotatably connected inside the housing.

[0017] The gear meshes with the rack.

[0018] As an optional embodiment of the automatic fixture for processing brake drums according to this utility model, the three auxiliary frames are arranged in a circular array around the axis of the support plate, and each auxiliary frame is located on one side of the slide bar.

[0019] This utility model has the following beneficial effects:

[0020] 1. The automatic clamping fixture for processing brake drums uses three slide rods arranged in a circular array around the axis of the support plate on the upper surface of the support plate. The three slide rods are evenly distributed, so when the three slide rods slide at the same time, they will squeeze and change the position of the brake drum, thereby keeping the axis of the brake drum in the same position as the axis of the support plate, and thus achieving automatic clamping and calibration of the axis.

[0021] 2. The automatic clamping fixture for processing the brake drum uses three clamping heads that abut against the inner wall of the brake drum. By increasing the contact area between the clamping heads and the brake drum, the clamping effect is improved. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a cross-sectional view of the protective cover of this utility model.

[0024] Figure 3 This is a cross-sectional view of the housing of this utility model.

[0025] In the diagram: 1. Housing; 2. Support plate; 3. Protective cover; 4. Auxiliary frame; 5. Slide rod; 6. Clamping head; 7. Guide rail; 8. Rotary disk; 9. Arc groove; 10. Shaft; 11. Roller; 12. Slide groove; 13. Gear; 14. Rack; 15. Push plate; 16. Cylinder. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] Please see Figures 1-2 One type of automatic fixture for processing brake drums includes:

[0029] Casing 1;

[0030] Support plate 2 is installed at the upper end of housing 1;

[0031] Three guide rails 7 are arranged in a ring array around the axis of the support plate 2 on the upper surface of the support plate 2. Three auxiliary frames 4 are also installed on the upper end of the support plate 2.

[0032] Three auxiliary frames 4 are arranged in a circular array around the axis of the support plate 2, with each auxiliary frame 4 located on one side of the slide bar 5;

[0033] The slide rod 5 is slidably connected to the upper end of the guide rail 7. One end of the slide rod 5 is equipped with a clamping head 6, which is used to abut against the inner wall of the brake drum.

[0034] A drive device is located at the upper end of the support plate 2 and is used to drive the slide bar 5 to slide.

[0035] A protective cover 3 is also installed on the upper end of the support plate 2, and one end of the slide rod 5 and the guide rail 7 are inserted into the interior of the protective cover 3.

[0036] according to Figure 1 As shown, the brake drum is placed on the upper surface of the auxiliary frame 4, and the brake drum is supported by three auxiliary frames 4. Then, three slide rods 5 are slid simultaneously. The three slide rods 5 are arranged in a ring array around the axis of the support plate 2 on the upper surface of the support plate 2, and the three slide rods 5 are evenly distributed. Therefore, when the three slide rods 5 slide simultaneously, they will squeeze and change the position of the brake drum, so as to keep the axis of the brake drum and the axis of the support plate 2 in the same position, thereby realizing automatic clamping and calibration of the axis.

[0037] Furthermore, according to Figure 1 As shown, a clamping head 6 is installed at one end of the slide rod 5. The clamping head 6 is a conical cylinder. The three clamping heads 6 abut against the inner wall of the brake drum. The clamping heads 6 increase the contact area between the brake drum and the brake drum, thereby improving the clamping effect.

[0038] The protective cover 3 is rotatably connected to a rotating disk 8. The upper end of the rotating disk 8 is provided with an arc groove 9, which penetrates the rotating disk 8.

[0039] One end of the slide rod 5 is rotatably connected to a roller 11, and the roller 11 is slidably connected inside the arc groove 9;

[0040] according to Figure 2 As shown, by simultaneously sliding the two slide rods 5, the slide rods 5 drive the clamping head 6 to abut against the inner wall of the brake drum;

[0041] The drive source for sliding the slide bar 5 is a pneumatic push rod.

[0042] Example 2

[0043] This embodiment is an improvement upon embodiment 1. For details, please refer to [link / reference]. Figures 1-3 The upper end of the guide rail 7 is provided with a slide groove 12, and the lower end of the clamping head 6 is also equipped with a slider, which is slidably connected inside the slide groove 12.

[0044] The drive unit includes a cylinder 16 installed inside the housing 1, a push plate 15 is installed at one end of the cylinder 16, and a rack 14 is installed on one side of the push plate 15.

[0045] A shaft 10 is installed at the lower end of the rotating disk 8, and a gear 13 is installed at the lower end of the shaft 10. The gear 13 is rotatably connected inside the housing 1.

[0046] Gear 13 meshes with rack 14.

[0047] When using Embodiment 1, three power sources are needed to simultaneously push the slide bar 5 to slide, which requires high-value equipment and precise calibration, resulting in excessive costs.

[0048] Therefore, according to Figure 2 and Figure 3 As shown, the cylinder 16 pushes the push plate 15 to slide, the push plate 15 drives the rack 14 to slide, the rack 14 drives the gear 13 to rotate, the gear 13 drives the shaft 10 to rotate, and the shaft 10 drives the rotating disk 8 to rotate. Since the roller 11 is slidably connected inside the arc groove 9, when the rotating disk 8 rotates, the rotating disk 8 will drive the roller 11 to slide inside the arc groove 9, so that the roller 11 slides from one end of the arc groove 9 to the other end of the arc groove 9. Since the lower end of the roller 11 is connected to the slide rod 5, and the lower end of the slide rod 5 is connected to the slide groove 12, when the roller 11 slides, it will drive the slide rod 5 to slide along the direction of the slide groove 12. In this way, the three slide rods 5 slide simultaneously and quickly, so that the clamping head 6 can quickly align the brake drum shaft with the support disk 2 shaft, and the clamping head 6 can better clamp the brake drum.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An automatic fixture for machining brake drums, characterized in that, include: Shell (1); Support plate (2), the support plate (2) is installed at the upper end of the housing (1); Three guide rails (7) are arranged in a ring array around the axis of the support disk (2) on the upper surface of the support disk (2), and three auxiliary frames (4) are also installed on the upper end of the support disk (2). A slide rod (5) is slidably connected to the upper end of the guide rail (7). A clamping head (6) is installed at one end of the slide rod (5). The clamping head (6) is used to abut against the inner wall of the brake drum. A driving device is provided at the upper end of the support plate (2) and is used to drive the slide bar (5) to slide.

2. The automatic fixture for processing brake drums according to claim 1, characterized in that: The upper end of the support plate (2) is also equipped with a protective cover (3), and one end of the slide rod (5) and the guide rail (7) are inserted into the interior of the protective cover (3).

3. The automatic fixture for processing brake drums according to claim 2, characterized in that: The protective cover (3) is rotatably connected to a rotating disk (8), and the upper end of the rotating disk (8) is provided with an arc groove (9), which penetrates the rotating disk (8). One end of the slide bar (5) is rotatably connected to a roller (11), and the roller (11) is slidably connected inside the arc groove (9).

4. The automatic fixture for processing brake drums according to claim 3, characterized in that: The upper end of the guide rail (7) is provided with a slide groove (12), and the lower end of the clamping head (6) is also provided with a slider, which is slidably connected inside the slide groove (12).

5. The automatic fixture for processing brake drums according to claim 4, characterized in that: The drive device includes a cylinder (16) installed inside the housing (1), a push plate (15) is installed at one end of the cylinder (16), and a rack (14) is installed on one side of the push plate (15). The lower end of the rotating disk (8) is equipped with a shaft (10), and the lower end of the shaft (10) is equipped with a gear (13), which is rotatably connected to the inside of the housing (1). The gear (13) meshes with the rack (14).

6. The automatic fixture for processing brake drums according to claim 1, characterized in that: The three auxiliary frames (4) are arranged in a circular array around the axis of the support plate (2), with each auxiliary frame (4) located on one side of the slide bar (5).

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