Drilling device for brake drum machining

Abstract

The utility model discloses a drilling device for brake drum machining, and relates to the technical field of stamping positioning, the drilling device comprises a base, a part groove is formed in the center of the base, movable positioning blocks capable of moving relative to the center of the part groove are arranged on the periphery of the part groove, and the movable positioning blocks are close to the center of the part groove to abut against a brake drum; a movable pushing block is arranged on the side, away from the center of the part groove, of the movable positioning block, a top plate is fixedly arranged on the base through a stand column, the top plate is downwards connected with a movable seat in sliding connection with the stand column through a telescopic piece, a drilling assembly is arranged in the middle of the movable seat, and boosting blocks used for pressing the movable pushing block downwards are arranged on the periphery of the movable seat. The four movable positioning blocks gather towards the center of the part groove to clamp and position the brake drum, automatic positioning is achieved, meanwhile, after positioning is completed, the drilling assembly drills the brake drum, the working efficiency is greatly improved, and the working difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the stamping positioning technical field, in particular to a drilling device for brake drum machining. BACKGROUND

[0002] The end face hole of a brake drum is usually manually positioned by an operator on site, and then drilling is completed by a drilling tool. The manual positioning in the drilling process is not only inconvenient, but also affects the machining efficiency. CONTENT OF THE UTILITY MODEL

[0003] The main purpose of the application is to provide a drilling device for brake drum machining, which aims to solve the above technical problems.

[0004] The technical scheme adopted by the application is as follows:

[0005] A drilling device for brake drum machining comprises a base, a part groove is arranged in the center of the base, movable positioning blocks capable of moving relative to the center of the part groove are arranged around the part groove, the movable positioning blocks are close to the center of the part groove and abut against a brake drum, movable push blocks are arranged on the side of the movable positioning blocks away from the center of the part groove, a top plate is fixed on the base through a stand, the top plate is connected downward with a movable seat which is slidingly connected with the stand through an extension piece, a drilling assembly is arranged in the center of the movable seat, and push blocks for pressing down the movable push blocks are arranged around the movable seat. In the process of moving downward, the movable positioning blocks move to the center of the part groove as the extension piece is elongated, and the drilling assembly completes drilling of the brake drum as the extension piece is elongated.

[0006] Optionally, the drilling assembly comprises:

[0007] A drilling motor is fixed on the top of the movable seat.

[0008] A driving gear is fixed on the output end of the drilling motor.

[0009] A plurality of driven gears are arranged around the driving gear in a circumferential direction, and the driving gear is in engagement with each driven gear.

[0010] A drill rod corresponds to each driven gear, and the driven gear is fixedly sleeved on the corresponding drill rod.

[0011] Optionally, the driving gear and the driven gear are arranged in a gear box, and the drill rod is connected with the gear box through a bearing.

[0012] Optionally, a first inclined surface and a first vertical surface are sequentially arranged on the side of the movable positioning block away from the center of the part groove from top to bottom, and the movable positioning block is connected with a first spring for always resetting the movable positioning block.

[0013] Optionally, a second inclined surface and a second vertical surface are sequentially arranged on the side of the movable pushing block facing the movable positioning block from bottom to top, the first inclined surface and the second inclined surface are smoothly contacted, a sliding rod is arranged on the base for penetrating the movable positioning block, and a second spring is sleeved on the sliding rod and abuts against the positioning block and the movable pushing block.

[0014] Optionally, the base is provided with a T-shaped sliding groove for guiding the movement of the movable positioning block, and a T-shaped sliding block is arranged on the bottom of the movable positioning block and is slidingly matched with the T-shaped sliding groove.

[0015] Optionally, the movable positioning block is provided with a short shaft for connecting the first spring, a locking pin is arranged on the short shaft for fixing the first spring, and the first spring is arranged in the T-shaped sliding groove and is fixed away from the center of the part groove.

[0016] Optionally, the movable pushing block is provided with a variable-diameter hole for connecting the sliding rod, and the top of the sliding rod penetrates into the variable-diameter hole and is provided with an enlarged end.

[0017] Optionally, the movable positioning block is flush with the edge of the part groove near the center of the part groove.

[0018] Optionally, a counterbore is arranged in the center of the part groove, a third spring is arranged in the counterbore, a coarse positioning block is connected with the third spring, the coarse positioning block protrudes into the counterbore, and the coarse positioning block can retreat into the counterbore under pressure.

[0019] Compared with the prior art, the brake drum machining drilling device has the following beneficial effects:

[0020] The brake drum machining drilling device provided by the embodiment of the present application comprises a base, a movable positioning block and a movable pushing block. The brake drum is placed in the part groove, the extension of the telescopic member drives the movable seat to move downward and applies pressure on the movable pushing block, the movable positioning block is pushed to the center of the part groove during the downward movement, four movable positioning blocks gather to the center of the part groove to clamp and position the brake drum, automatic positioning is realized, and the drilling assembly drills the brake drum after positioning, thereby greatly improving the work efficiency and reducing the work difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The structure schematic view of the brake drum machining drilling device provided by the embodiment of the present application is shown in one view.

[0022] Figure 2 For Figure 1 Enlarged view at A;

[0023] Figure 3 For the brake drum processing drilling device provided by the embodiment of the application is a front view;

[0024] Figure 4 For Figure 3 A-A direction view.

[0025] Explanation of reference numerals in the drawings:

[0026] 1-base, 101-part slot, 2-movable positioning block, 201-first inclined surface part, 202-first vertical surface part, 3-first spring, 4-short shaft, 5-lock pin, 6-T-shaped sliding groove, 7-movable pushing block, 701-second inclined surface part, 702-second vertical surface part, 703-reducing hole, 8-sliding rod, 9-second spring, 10-coarse positioning block, 11-drilling assembly, 1101-motor shell, 1102-driving gear, 1103-driven gear, 1104-drill rod, 1105-gear box, 12-movable seat, 13-stand, 14-telescopic part, 15-assisting block, 16-top plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0029] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features indicated or implicitly indicating the number of technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope claimed by the present application.

[0031] Referring to the drawings Figure 1 The embodiments of the present application provide a drilling device for brake drum processing, which comprises a base 1, movable positioning blocks 2, movable pushing blocks 7 and a drilling assembly. The base 1 is centrally provided with a part groove 101, and the brake drum is placed in the part groove 101 during work. The movable positioning blocks 2 are arranged around the part groove 101 and can move relative to the center of the part groove 101. In the natural state, the side surface of the movable positioning blocks 2 close to the center of the part groove 101 is flush with the outer edge of the part groove 101, and after the brake drum is randomly placed in the part groove 101, the movable positioning blocks 2 around the part groove 101 are synchronously moved to the center of the part groove 101 to tightly press the brake drum, so as to realize the automatic positioning adjustment of the brake drum. The movable pushing blocks 7 are arranged on the side of the movable positioning blocks 2 away from the center of the part groove 101, and the movable pushing blocks 7 are located obliquely above the movable positioning blocks 2. During work, the movable pushing blocks 7 are pressed and moved downward to apply a lateral pushing force to the movable positioning blocks 2, so that the movable positioning blocks 2 are moved to the center of the part groove 101 to tightly press and clamp the brake drum, thereby realizing the automatic positioning adjustment of the stamping part, greatly facilitating the positioning efficiency and reducing the positioning difficulty.

[0032] Specifically:

[0033] For example Figures 1-2As shown, the base is provided with a T-shaped sliding groove 6 for guiding the movement of the movable positioning block 2, the bottom of the movable positioning block 2 is provided with a T-shaped sliding block which is in sliding fit with the T-shaped sliding groove 6, thereby playing a guiding role in the movement of the movable positioning block 2, and a first spring 3 is further arranged in the T-shaped sliding groove 6, one end of the first spring 3 is fixedly connected with the T-shaped sliding groove 6 away from the center of the part groove 101, the other end of the first spring 3 is fixedly connected with the movable positioning block, a short shaft 4 is arranged on the movable positioning block, the first spring 3 is sleeved on the short shaft 4, a locking pin 5 is transversely arranged on the short shaft 4, and the locking pin 5 limits the first spring 3 from falling off the short shaft 4. As can be imagined, when the movable positioning block moves towards the center of the part groove 101, the first spring 3 is elongated, and the first spring 3 can reset the movable positioning block.

[0034] Further, as shown in Figure 1 The movable pushing block 7 is sequentially provided with a second inclined surface part 701 and a second vertical surface part 702 from bottom to top on the side facing the movable positioning block 2, the first inclined surface part 201 and the second inclined surface part 701 are in smooth contact, the movable pushing block 7 is provided with a variable-diameter hole 703 in the vertical direction, the lower part of the variable-diameter hole 703 is a small-diameter section, and the upper part is a large-diameter section. A sliding rod 8 is arranged on the base for penetrating the movable positioning block 2, the sliding rod 8 penetrates into the variable-diameter hole 703, in the natural state, the top end of the sliding rod 8 is located at the joint of the small-diameter section and the large-diameter section, and the top end of the sliding rod 8 is provided with an enlarged end head to prevent the sliding rod 8 from sliding out from the bottom end. A second spring 9 is sleeved on the sliding rod 8 and abuts against the positioning block and the movable pushing block 7, in the natural state, the spring lifts up the movable pushing block 7, and the depth of the variable-diameter hole 703 is greater than the length of the sliding rod 8, so that when the movable pushing block 7 moves downward, the sliding rod 8 will not protrude out of the top end of the variable-diameter hole 703.

[0035] In the embodiment, as shown in Figure 3 and Figure 4 The base 1 is fixedly connected with a top plate 16 through a stand 13, the top plate 16 is centrally provided with a telescopic member 14, the telescopic member 14 is downwardly connected with a movable seat 12, the movable seat 12 is slidingly connected with the stand 13, the movable seat 12 is driven to move up and down through the telescopic member 14, and a pushing block 15 is arranged on the bottom surface of the movable seat 12 corresponding to each movable pushing block 7, when the movable seat 12 moves downward, the pushing block 15 applies pressure to the movable pushing block 7 to make the movable pushing block 7 move downward synchronously, thereby driving the movable positioning block 2 to move laterally.

[0036] It should be noted that the telescopic member 14 can be but is not limited to telescopic mechanisms such as electric push rods, air cylinders and hydraulic cylinders.

[0037] The drilling assembly 11 is centrally arranged at the bottom of the movable seat 12, and comprises a drilling motor, a driving gear 1102, a driven gear 1103 and a drill rod 1104. The driving gear 1102 and the driven gear 1103 are installed in a gear box 1105 which is fixed to the top of the movable seat 12. The drilling motor is fixed to the top outside of the gear box 1105 and arranged in a motor shell 1101. The telescopic member 14 is fixedly connected with the motor shell 1101. The output end of the drilling motor extends into the gear box 1105. The driving gear 1102 is fixed to the output end of the drilling motor. The driven gears 1103 are circumferentially arranged around the driving gear 1102. The driving gear 1102 is in engagement with each of the driven gears 1103. Each of the driven gears 1103 is provided with a drill rod 1104. The driven gear 1103 is fixedly sleeved on the corresponding drill rod 1104. The drill rod 1104 is rotatably connected with the gear box 1105 through a bearing. The drill rod 1104 extends downward out of the gear box 1105. The movable seat 12 is provided with an avoiding hole through which the drill rod 1104 extends downward.

[0038] It can be imagined that, during drilling, when the boosting block 15 contacts with the movable boosting block 7, the movable boosting block 7 is gradually pushed downward by the boosting block 15. Through the contact between the first inclined surface 201 and the second inclined surface 701, the movable positioning block 2 is pressed to one side of the center of the part groove 101, so as to adjust and position the brake drum placed in the part groove 101. When the boosting block 15 presses the movable boosting block 7 to the first vertical surface 202 and the second vertical surface 702, the movable positioning block 2 completes the positioning and clamping of the brake drum. At this time, the drill rod 1104 just contacts with the brake drum. With the continuous extension of the telescopic member 14, the first vertical surface 202 and the second vertical surface 702 between the movable boosting block 7 and the movable positioning block 2 keep in contact. The movable positioning block 2 no longer moves to one side of the center of the part groove 101. Thus, the drill rod 1104 continues to move downward with the movable seat 12 to complete the drilling of the brake drum. After the drilling is completed, the telescopic member 14 is retracted, the drill rod 1104 rises with the movable seat 12, and the movable positioning block 2 and the movable boosting block 7 are reset under the action of the first spring 3 and the second spring 9.

[0039] In one embodiment, the center of the part slot 101 is provided with a counterbore, a third spring is arranged in the counterbore, and the third spring is connected with a coarse positioning block 10. It is known that the center of the brake drum has a bearing hole for connection, and the coarse positioning block 10 is designed to be smaller than the bearing hole of the center of the brake drum, so as to facilitate the quick placement of the brake drum into the part slot 101 and complete the coarse positioning. In the natural state, the coarse positioning block 10 protrudes in the counterbore, and the coarse positioning block 10 can be retracted into the counterbore under pressure. It can be found that the coarse positioning of the brake drum by the coarse positioning block 10 and the automatic positioning and clamping of the brake drum by the four movable positioning blocks 2 can effectively improve the positioning efficiency.

[0040] The above description is merely preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A drilling apparatus for brake drum machining, characterized by, The utility model provides a centering and drilling device for brake drum, including base, the base is centrally provided with part slot, the four around of part slot is provided with movable positioning block can move relative to the center of part slot, movable positioning block is close to the center of part slot to resist the brake drum, movable positioning block is provided with movable push block far from the center of part slot side, the top of base is fixedly provided with top plate through stand, top plate is connected with movable seat of sliding connection with stand through telescopic piece downward, movable seat is centrally provided with drilling assembly, the four around of movable seat is provided with boost block for pressing movable push block down, movable seat makes movable positioning block move to the center of part slot in the process of moving down with telescopic piece elongation, drilling assembly completes drilling to brake drum with telescopic piece elongation.

2. The apparatus according to claim 1, wherein The drilling assembly comprises: Drilling motor, the drilling motor is fixedly arranged on the top of movable seat; Driving gear, the driving gear is fixed to the output end of drilling motor; Driven gear, a plurality of driven gears are arranged circumferentially around the driving gear, and the driving gear is engaged with each driven gear; Drill rod, the drill rod corresponds to the driven gear, and the driven gear is fixedly sleeved on the corresponding drill rod.

3. The apparatus of claim 2 wherein, The driving gear and the driven gear are arranged in a gear box, and the drill rod is connected with the gear box bearing.

4. The apparatus of claim 1 wherein, The side of the movable positioning block away from the center of the part slot is sequentially provided with a first inclined surface and a first vertical surface from top to bottom, and the movable positioning block is connected with a first spring for always resetting.

5. The apparatus of claim 4 wherein, The side of the movable push block facing the movable positioning block is sequentially provided with a second inclined surface and a second vertical surface from bottom to top, the first inclined surface and the second inclined surface are in smooth contact, and the base is provided with a slide rod for connecting the movable positioning block, and the slide rod is sleeved with a second spring abutting against the positioning block and the movable push block.

6. The apparatus according to claim 4, wherein The base is provided with a T-shaped sliding groove for guiding the movement of the movable positioning block, and the bottom of the movable positioning block is provided with a T-shaped sliding block slidingly matched with the T-shaped sliding groove.

7. The apparatus of claim 6 wherein, The movable positioning block is provided with a short shaft for connecting the first spring, the short shaft is provided with a locking pin for fixing the first spring, and the first spring is arranged in the T-shaped sliding groove and fixed away from the center of the part slot.

8. The apparatus of claim 5 wherein, The movable push block is provided with a variable-diameter hole for connecting the slide rod, and the top of the slide rod penetrates into the variable-diameter hole and is provided with an enlarged end.

9. The apparatus of claim 1 wherein, In the natural state, the movable positioning block is flush with the edge of the part slot near the center of the part slot.

10. The apparatus of claim 1 wherein, The center of the part slot is provided with a counterbore, the counterbore is provided with a third spring, the third spring is connected with a coarse positioning block, the coarse positioning block protrudes into the counterbore, and the coarse positioning block can retreat into the counterbore under pressure.

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