Brake drum finish machining device and method

Abstract

The invention discloses a brake drum finish machining device and method, and belongs to the technical field of brake drum machining. The machining device comprises a numerical control lathe, a machining center, a brake balancing machine, a pneumatic grinding machine, a laser coding machine, a cleaning machine, a paint spraying device and a hoisting mechanism for transferring the brake drum, the hoisting mechanism comprises a fixing disc, a first connecting arm, a second connecting arm and a pressing block, the top of the fixing disc is used for being connected with a lifting appliance, and the first connecting arm is slidably installed on the fixing disc; the second connecting arm is installed on the fixing disc and located on the side opposite to the first connecting arm, and the pressing block is installed at the end of the second connecting arm in a sliding mode; the pressing block is provided with a first vertical part and a horizontal part perpendicular to the first vertical part, the second connecting arm is provided with a second vertical part, and the first vertical part is parallel to the second vertical part. In actual use, the technical problem that in the prior art, when a brake drum is transferred, collision is likely to happen in the placing process due to the fact that the brake drum is likely to incline can be effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of brake drum processing, and in particular to a brake drum finishing device and method. Background Art

[0002] The brake drum is the friction pair of the drum brake. The brake drum is generally made of fragile gray cast iron material. The common material model is HT200-300. The shape of the brake drum is similar to the iron casting of a tambourine or hand drum. It is a key cast iron component. The main function of the brake drum is to suppress the rotation of the tire through friction during the braking process, thereby achieving the purpose of braking.

[0003] In the prior art, the processing of the cast brake drum requires multiple equipment and multiple processing steps. Since the brake drum is heavy, a lifting mechanism is required to transport the brake drum. Since the brake drum needs to be placed stably during the transportation process, the brake drum is prone to tilt during the actual transportation process, and is prone to bumping when placed. Summary of the invention

[0004] The object of the present invention is to provide a brake drum finishing device and method, which in actual use can effectively solve the technical problem in the prior art that the brake drum is prone to tilt during transportation, resulting in collision during placement.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A brake drum finishing device, including a CNC lathe, a machining center, a brake balancing machine, a pneumatic grinder, a laser coding machine, a cleaning machine, a painting device, and a hoisting mechanism for transporting the brake drum;

[0007] The lifting mechanism includes:

[0008] A fixed plate, the top of which is used to connect with the sling;

[0009] A first connecting arm, the first connecting arm is slidably mounted on the fixed plate;

[0010] A second connecting arm, the second connecting arm is mounted on the fixed plate and is located at a side opposite to the first connecting arm;

[0011] A pressing block, the pressing block being slidably mounted on the end of the second connecting arm;

[0012] The pressing block is provided with a first vertical portion and a horizontal portion perpendicular to the first vertical portion, the second connecting arm is provided with a second vertical portion, the first vertical portion and the second vertical portion are parallel to each other; the first vertical portion, the second vertical portion and the horizontal portion form a limiting area;

[0013] The pressing block is provided with an adjusting bolt for connecting with the second connecting arm, a return spring is provided between the pressing block and the second connecting arm, the second connecting arm is connected with the adjusting bolt through a thread, and the adjusting bolt is used to drive the pressing block to move toward the second connecting arm;

[0014] The position of the first connecting arm is adjusted by adjusting the distance between the second vertical portion and the end face of the first vertical portion according to the wall thickness of the brake drum to be hoisted, so that when the fixing plate is hoisted by a hoist, the first connecting arm and the second connecting arm are both in a horizontal state; when in use, the edge of the brake drum is extended into the limited area, and then the adjusting bolt is adjusted to make the pressure block close to the second connecting arm, so that the end face of the horizontal portion and the second vertical portion are in contact to fix the brake drum.

[0015] Wherein, a guide hole is arranged on the second vertical portion, and a guide column is arranged on the pressing block, and the guide column passes through the guide hole.

[0016] Furthermore, a step surface is formed at the connection between the first vertical portion and the pressing block, the step surface is flush with the bottom surface of the guide block, and the lower surface of the first connecting portion is flush with the bottom surface of the guide block.

[0017] Preferably, a first guide hole is provided at the end of the second connecting arm, a first guide column slidingly matched with the first guide hole is provided on the pressure block, a threaded hole is provided in the first guide hole, a return spring is sleeved on the first guide column, and the adjusting bolt passes through the guide block and the first guide column and then matches with the threaded hole.

[0018] Furthermore, a baffle is rotatably mounted on the adjusting bolt, and the baffle contacts the pressing block.

[0019] Wherein, an adjusting hand wheel is arranged at the end of the adjusting bolt.

[0020] Furthermore, a driving unit is provided on the fixed plate, and the driving unit is used to drive the first connecting arm to move.

[0021] A brake drum finishing method specifically comprises the following steps:

[0022] Step 1: Use a lifting mechanism to lift the brake drum to the processing equipment, and after clamping the brake drum, roughly turn the outer cylindrical riser at the large end and the stopper at the small end;

[0023] Step 2: Rough and fine turn the step surface, end face, and outer circle of the large end, rough turn the brake surface and the stopper of the small end, and rough and fine turn the inner and outer end faces of the small end;

[0024] Step 3: Finish turning the large end face, brake surface and brake surface root R angle, small end step surface and stop, chamfer;

[0025] Step 4: Drill bolt holes, threaded holes, positioning holes, bell mouths and chamfer them;

[0026] Step 5: Check the dynamic balance and remove the weight by milling if it does not meet the requirements;

[0027] Step 6: polishing, marking, cleaning, painting, quality inspection;

[0028] Wherein, the lifting tool is a lifting mechanism in the brake drum finishing device described in any one of claims 1-7.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The present invention is mainly used to realize the processing of brake drums. In the present invention, a lifting mechanism is adopted to realize the stable and accurate transportation of the brake drum, and the brake drum is ensured to be in a horizontal state during the lifting and transportation process; the distance between the second vertical part and the end face of the first vertical part is adjusted according to the wall thickness of the brake drum to be lifted, so as to adjust the position of the first connecting arm, so that when the lifting device is used to lift the fixing plate, the first connecting arm and the second connecting arm are both in a horizontal state; when in use, the edge of the brake drum is extended into the limited area, and then the adjusting bolt is adjusted to make the pressure block close to the second connecting arm, so that the end face of the horizontal part and the second vertical part are in contact to fix the brake drum; the present invention uses the wall thickness of the brake drum to adjust the distance between the second vertical part and the end face of the horizontal part as a reference to adjust the position of the first connecting arm, so that the lifting mechanism is in a balanced state when in a normal state, and can maintain a horizontal state after clamping the brake drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a schematic diagram of the overall structure of the lifting mechanism of the present invention.

[0033] Figure 2 For the present invention Figure 1 main view.

[0034] Figure 3 It is a schematic diagram of the use state of the present invention.

[0035] Figure 4 For the present invention Figure 1 A partial enlarged schematic diagram in the middle.

[0036] Figure 5 For the present invention Figure 3 A partial enlarged schematic diagram of point B in the middle.

[0037] Reference numerals:

[0038] 101 lifting mechanism, 102 fixing plate, 103 first connecting arm, 104 second connecting arm, 105 pressing block, 106 first vertical portion, 107 horizontal portion, 108 second vertical portion, 109 limiting area, 110 adjusting bolt, 111 return spring, 112 guide hole, 113 guide column, 114 stepped surface, 115 first guide hole, 116 first guide column, 117 threaded hole, 118 baffle, 119 adjusting hand wheel, 120 driving unit, 121 outer cover, 122 worm wheel, 123 worm, 124 gear, 125 meshing tooth, 126 first slide groove, 127 tightening bolt, 128 slide groove, 129 brake drum. DETAILED DESCRIPTION

[0039] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0040] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0043] In the embodiments of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] The disclosure below provides many different embodiments or examples to implement different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present invention. In addition, the embodiments of the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0045] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0046] See also Figure 1-Figure 5 This embodiment discloses a brake drum finishing device, including a CNC lathe, a machining center, a brake balancing machine, a pneumatic grinder, a laser coding machine, a cleaning machine, a paint spraying device, and a hoisting mechanism 101 for transporting a brake drum 129, the hoisting mechanism 101 including:

[0047] A fixed plate 102, the top of which is used to connect with the sling;

[0048] A first connecting arm 103, the first connecting arm 103 is slidably mounted on the fixed plate 102;

[0049] A second connecting arm 104, which is mounted on the fixing plate 102 and is located at a side opposite to the first connecting arm 103;

[0050] A pressing block 105, wherein the pressing block 105 is slidably mounted on an end of the second connecting arm 104;

[0051] The pressing block 105 is provided with a first vertical portion 106 and a horizontal portion 107 which is perpendicular to the first vertical portion 106, and the second connecting arm 104 is provided with a second vertical portion 108, the first vertical portion 106 and the second vertical portion 108 are parallel to each other; the first vertical portion 106, the second vertical portion 108 and the horizontal portion 107 form a limiting area 109;

[0052] The pressure block 105 is provided with an adjusting bolt 110 for connecting with the second connecting arm 104 , a return spring 111 is provided between the pressure block 105 and the second connecting arm 104 , the second connecting arm 104 and the adjusting bolt 110 are connected by threads, and the adjusting bolt 110 is used to drive the pressure block 105 to move toward the second connecting arm 104 .

[0053] The present invention is mainly used to realize the processing of the brake drum 129. In the present invention, the hoisting mechanism 101 is used to realize the stable and accurate transportation of the brake drum 129, and the brake drum 129 is ensured to be in a horizontal state during the hoisting and transportation process; the distance between the second vertical portion 108 and the end face of the first vertical portion 106 is adjusted according to the wall thickness of the brake drum 129 to be hoisted to adjust the position of the first connecting arm 103, so that when the hoisting device is used to hoist the fixed plate 102, the first connecting arm 103 and the second connecting arm 104 are both in a horizontal state; when in use, the brake drum 129 is The edge of the drum 129 extends into the limiting area 109, and then the adjusting bolt is adjusted to make the pressure block 105 close to the second connecting arm 104, so that the end face of the horizontal portion 107 and the second vertical portion 108 are in contact to fix the brake drum 129; the present invention adjusts the distance between the second vertical portion 108 and the end face of the horizontal portion 107 through the wall thickness of the brake drum 129 as a reference to adjust the position of the first connecting arm 103, so that the lifting mechanism 101 is in a balanced state when in normal state, and can maintain a horizontal state after clamping the brake drum 129.

[0054] In the present application, the position of the pressing block 105 can be preliminarily confirmed according to the wall thickness of the brake drum 129, and then the first connecting arm 103 can be moved to achieve the purpose of leveling while the fixed plate 102 is lifted; when in use, the center of the fixed plate 102 is ensured to be in line with the center of the brake drum 129. In this way, the overall center of gravity can be kept constant when the brake drum 129 is lifted, so that the brake drum 129 can be lifted in an ideal posture, avoiding the situation of local collision during the placement process after tilted lifting.

[0055] More importantly, when in use, the pressure block 105 presses the brake drum 129 onto the second vertical portion 108, thereby fixing and clamping the brake drum 129, making it more stable when moving, and avoiding the occurrence of gaps between the brake drum 129 and the second vertical portion 108 and the first vertical portion 106, which may cause the brake drum 129 to tilt during lifting.

[0056] A guide hole 112 is provided on the second vertical portion 108, and a guide column 113 is provided on the pressing block 105, and the guide column 113 passes through the guide hole 112. The guide column 113 and the guide hole 112 can guide the pressing block 105, so that the pressing block 105 is more stable when moving.

[0057] Furthermore, a step surface 114 is formed at the connection between the first vertical portion 106 and the pressure block 105, and the step surface 114 is flush with the bottom surface of the guide block, and the lower surface of the first connection portion is flush with the bottom surface of the guide block. Under the limitation of the step surface 114 and the first guide block, the purpose of limiting can be achieved, so that the end surface of the brake drum 129 contacts the guide block to achieve the purpose of positioning.

[0058] Furthermore, a first guide hole 115 is provided at the end of the second connecting arm 104, a first guide column 116 that slides with the first guide hole 115 is provided on the pressing block 105, a threaded hole 117 is provided in the first guide hole 115, a return spring 111 is sleeved on the first guide column 116, and the adjusting bolt 110 passes through the guide block and the first guide column 116 and then cooperates with the threaded hole 117.

[0059] Such an arrangement can guide the guide block so that the guide block can move smoothly.

[0060] The adjusting bolt 110 is rotatably mounted with a blocking piece 118 , and the blocking piece 118 is in contact with the pressing block 105 .

[0061] Among them, an adjusting hand wheel 119 is provided at the end of the adjusting bolt 110 .

[0062] Furthermore, a driving unit 120 is disposed on the fixed plate 102, and the driving unit 120 is used to drive the first connecting arm 103 to move. The driving unit 120 is provided to drive the first connecting arm 103.

[0063] In the present application, the driving unit 120 includes an outer cover 121, a worm wheel 122, a worm 123 and a gear 124. The outer cover 121 is fixedly mounted on the fixed disk 102. The fixed disk 102 is provided with a slide groove 128. The first connecting arm 103 is slidably mounted in the slide groove 128.

[0064] The worm 123 is rotatably mounted on the outer cover 121 and one end extends out of the outer cover 121. The worm wheel 122 and the gear 124 are coaxially arranged and rotatably mounted on the outer cover 121 and the fixed plate 102. A plurality of meshing teeth 125 are arranged on the first connecting arm 103. The meshing teeth 125 cooperate with the gear 124, and the worm 123 cooperates with the worm wheel 122. A rotating wheel is arranged on the worm 123. When in use, it is necessary to drive the worm wheel 122 to rotate by rotating the worm 123, so that the worm wheel 122 drives the gear 124 to rotate, thereby realizing the driving of the first connecting arm 103 and realizing the fine adjustment of the position of the first connecting arm 103.

[0065] In some preferred implementation cases, a first slide groove 126 is provided on the fixed plate 102, and the first connecting arm 103 is slidably installed in the first slide groove 126. A fixing bolt 127 for fixing the first connecting arm 103 is provided on the mounting plate, so that the position of the first connecting arm 103 can be adjusted to meet the transportation of brake drums 129 of different specifications.

[0066] The present invention also discloses a brake drum finishing method, which uses the above-mentioned brake drum finishing device to achieve the purpose of processing; specifically, it comprises the following steps:

[0067] Step 1: Use the hoisting mechanism 101 to hoist the brake drum 129 to the processing equipment, and after the brake drum 129 is clamped, rough turn the outer cylindrical riser at the large end and the stopper at the small end;

[0068] Step 2: Rough and fine turn the step surface, end face, and outer circle of the large end, rough turn the brake surface and the stopper of the small end, and rough and fine turn the inner and outer end faces of the small end;

[0069] Step 3: Finish turning the large end face, brake surface and brake surface root R angle, small end step surface and stop, chamfer;

[0070] Step 4: Drill bolt holes, threaded holes 117, positioning holes, bell mouths and chamfer them;

[0071] Step 5: Check the dynamic balance and remove the weight by milling if it does not meet the requirements;

[0072] Step 6: Polishing, marking, cleaning, painting, quality inspection.

[0073] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A brake drum finishing device, comprising a CNC lathe, a machining center, a brake balancing machine, a pneumatic grinder, a laser coding machine, a cleaning machine, a paint spraying device, and a hoisting mechanism for transporting the brake drum, characterized in that: The lifting mechanism includes: A fixed plate, the top of which is used to connect with the sling; A first connecting arm, the first connecting arm is slidably mounted on the fixed plate; A second connecting arm, the second connecting arm is mounted on the fixed plate and is located at a side opposite to the first connecting arm; A pressing block, the pressing block being slidably mounted on the end of the second connecting arm; The pressing block is provided with a first vertical portion and a horizontal portion perpendicular to the first vertical portion, the second connecting arm is provided with a second vertical portion, the first vertical portion and the second vertical portion are parallel to each other; the first vertical portion, the second vertical portion and the horizontal portion form a limiting area; The pressing block is provided with an adjusting bolt for connecting with the second connecting arm, a return spring is provided between the pressing block and the second connecting arm, the second connecting arm is connected with the adjusting bolt through a thread, and the adjusting bolt is used to drive the pressing block to move toward the second connecting arm; The position of the first connecting arm is adjusted by adjusting the distance between the second vertical portion and the end face of the first vertical portion according to the wall thickness of the brake drum to be hoisted, so that when the fixing plate is hoisted by a hoist, the first connecting arm and the second connecting arm are both in a horizontal state; when in use, the edge of the brake drum is extended into the limited area, and then the adjusting bolt is adjusted to make the pressure block close to the second connecting arm, so that the end face of the horizontal portion and the second vertical portion are in contact to fix the brake drum.

2. A brake drum finishing device according to claim 1, characterized in that: A guide hole is arranged on the second vertical portion, and a guide column is arranged on the pressing block, and the guide column passes through the guide hole.

3. A brake drum finishing device according to claim 2, characterized in that: A step surface is formed at the connection between the first vertical portion and the pressing block, the step surface is flush with the bottom surface of the guide block, and the lower surface of the first connecting portion is flush with the bottom surface of the guide block.

4. A brake drum finishing device according to claim 1, characterized in that: A first guide hole is provided at the end of the second connecting arm, a first guide column is provided on the pressure block and slidingly cooperates with the first guide hole, a threaded hole is provided in the first guide hole, a return spring is sleeved on the first guide column, and the adjusting bolt passes through the guide block and the first guide column and cooperates with the threaded hole.

5. A brake drum finishing device according to claim 4, characterized in that: A baffle is rotatably mounted on the adjusting bolt, and the baffle contacts the pressing block.

6. A brake drum finishing device according to claim 4, characterized in that: An adjusting hand wheel is arranged at the end of the adjusting bolt.

7. A brake drum finishing device according to claim 1, characterized in that: A driving unit is arranged on the fixed plate, and the driving unit is used for driving the first connecting arm to move.

8. A brake drum finishing method, characterized in that: The specific steps include: Step 1: Use a lifting mechanism to lift the brake drum to the processing equipment, and after clamping the brake drum, roughly turn the outer cylindrical riser at the large end and the stopper at the small end; Step 2: Rough and fine turn the step surface, end face, and outer circle of the large end, rough turn the brake surface and the stopper of the small end, and rough and fine turn the inner and outer end faces of the small end; Step 3: Finish turning the large end face, brake surface and brake surface root R angle, small end step surface and stop, chamfer; Step 4: Drill bolt holes, threaded holes, positioning holes, bell mouths and chamfer them; Step 5: Check the dynamic balance and remove the weight by milling if it does not meet the requirements; Step 6: polishing, marking, cleaning, painting, quality inspection; Wherein, the lifting tool is a lifting mechanism in the brake drum finishing device described in any one of claims 1-7.

Images