US20160084261A1 - Pump Housing, in Block Form, of a Vehicle Brake System, and Method for Producing the Same - Google Patents
Pump Housing, in Block Form, of a Vehicle Brake System, and Method for Producing the Same Download PDFInfo
- Publication number
- US20160084261A1 US20160084261A1 US14/958,707 US201514958707A US2016084261A1 US 20160084261 A1 US20160084261 A1 US 20160084261A1 US 201514958707 A US201514958707 A US 201514958707A US 2016084261 A1 US2016084261 A1 US 2016084261A1
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- Prior art keywords
- blank
- pump housing
- producing
- block
- dimensions
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
- B21C35/02—Removing or drawing-off work
- B21C35/023—Work treatment directly following extrusion, e.g. further deformation or surface treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/26—Making machine elements housings or supporting parts, e.g. axle housings, engine mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
- B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
- B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units
- B60T8/368—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units combined with other mechanical components, e.g. pump units, master cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
- F04C2230/24—Manufacture essentially without removing material by extrusion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
- F04C2230/25—Manufacture essentially without removing material by forging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
- F04C2230/26—Manufacture essentially without removing material by rolling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
Definitions
- the disclosure relates to a block-form pump housing of a vehicle brake system, having a top side manufactured to final dimensions and a bottom side manufactured to final dimensions, and also to a process for producing such a block-form pump housing.
- Block-form pump housings of vehicle brake systems are produced as what are known as hydraulic blocks generally from aluminum.
- use is made of a manufacturing process in which firstly crude aluminum is processed to form semifinished rod product. The rods are then sawn into blocks, which are worked to final dimensions on at least one side by means of cutting manufacturing, generally a milling process. Otherwise, the dimensional tolerances which are required for the further processing for the pump housing cannot be produced.
- the disclosure is based on the object of providing a pump housing of a vehicle brake system which can be produced more cost-effectively.
- the invention provides a block-form pump housing of a vehicle brake system and a process for the production thereof, having a top side manufactured to final dimensions and a bottom side manufactured to final dimensions, in which the final dimensions of the top side and of the bottom side have been or are produced by means of a non-cutting forming process from a blank.
- the blank of the pump housing is initially sawn in the form of aluminum rods in particular after an extrusion process and then formed without cutting.
- Forming embraces all manufacturing processes in which metals in particular are changed plastically in a targeted manner to a different shape.
- plastic shaping it is often the case that firstly a primary formed (for example cast) primary material (a strand from continuous casting or an ingot from ingot casting) is formed into a semifinished product or a blank. The mass and the cohesion of the material are retained during the forming, even though the density of the material can change. Forming differs from deforming in that the change in shape is made in a targeted manner.
- the procedure according to the disclosure removes the costs for cutting machining and furthermore also for deburring on at least one side of the pump housing.
- the surface machined without cutting affords more protection against corrosion, as a result of which costs for sealing the surface can be saved.
- the protection of the surface can be provided during the production of the blank, because the surface is no longer subjected to cutting.
- the weight of the blank can be reduced, since the oversize of approximately 0.5 mm available for the cutting manufacturing can be dispensed with. This results in a further cost saving in relation to the consumption of raw material.
- Pressing in particular pressing with at least one roller or alternatively with at least one ram, is preferably carried out as the non-cutting forming process.
- the blank is preferably produced by means of an extrusion process.
- the final dimensions of the top side and of the bottom side are preferably produced to a tolerance of less than 0.1 mm.
- the non-cutting forming brings the blank into the block thickness mentioned in the range of 0.5 mm to 0.2 mm, without cutting machining being required.
- the pump housing is in particular provided with surface protection.
- Anodization or an atmospheric protection with plasma is advantageously provided as the surface protection.
- FIG. 1 shows a sequence of steps for producing a block-form pump housing according to the prior art
- FIG. 2 shows a perspective view of a pump housing having a top side manufactured to final dimensions and a bottom side manufactured to final dimensions according to the prior art, before the first cutting of openings,
- FIG. 3 shows a side view of the pump housing as shown in FIG. 2 in its first clamping apparatus
- FIG. 4 shows a perspective view of a first clamping arrangement as a whole with first clamping apparatuses as shown in FIG. 3 ,
- FIG. 5 shows a perspective view of a pump housing having a top side manufactured to final dimensions and a bottom side manufactured to final dimensions according to the prior art, before the second cutting of openings,
- FIG. 6 shows a side view of the pump housing as shown in FIG. 5 in its second clamping apparatus
- FIG. 7 shows a perspective view of a second clamping arrangement as a whole with second clamping apparatuses as shown in FIG. 6 ,
- FIG. 8 shows a sequence of steps for producing a block-form pump housing according to a first exemplary embodiment of the disclosure
- FIG. 9 shows a sequence of steps for producing a block-form pump housing according to a second exemplary embodiment of the disclosure
- FIG. 10 shows a perspective view of a pump housing having a top side manufactured to final dimensions and a bottom side manufactured to final dimensions according to the disclosure, before the first cutting of openings,
- FIG. 11 shows a side view of the pump housing as shown in FIG. 10 in its first clamping apparatus
- FIG. 12 shows a perspective view of a first clamping arrangement as a whole with first clamping apparatuses as shown in FIG. 11 ,
- FIG. 13 shows a perspective view of a pump housing having a top side manufactured to final dimensions and a bottom side manufactured to final dimensions according to the disclosure, before the second cutting of openings,
- FIG. 14 shows a side view of the pump housing as shown in FIG. 13 in its second clamping apparatus
- FIG. 15 shows a perspective view of a second clamping arrangement as a whole with second clamping apparatuses as shown in FIG. 14 .
- FIG. 1 illustrates individual steps 10 to 22 for producing a block-form pump housing 24 according to the prior art.
- step 10 liquid aluminum 26 is introduced into a chill 28 and rod stock 30 is cast at a temperature of approximately 650° C.
- the rod stock 30 is annealed in a furnace 32 in step 11 .
- step 12 the rod stock 30 is over-turned and sawn into rod portions 34 with a length of approximately 1500 mm.
- step 13 the individual rod portion 34 is then surveyed with a probe 36 with respect to its calibrated standard defect size.
- step 14 six rod portions 34 (only one is shown) are processed in parallel in an extrusion process by means of an extruder 38 at approximately 450° C. at a discharge nozzle 40 to form a strand 42 , which is then cooled to approximately 520° C. at a cooling system 44 .
- the individual strand 42 here does not have a purely rectangular cross section, but rather is provided on one of its side faces with two web-shaped, longitudinally directed markings 45 .
- step 15 a plurality of such strands 42 are stretched to a length of approximately 20 m at a stretching device 46 , and then the end portions 48 of the stretched strands 42 are sawn off at the ends.
- step 17 in which the prepared strands 42 are annealed in a furnace 50 at a temperature of approximately 175° C.
- step 18 the annealed strands 42 are sawn into individual blocks 54 by means of a saw 52 .
- Each of these blocks 54 is then processed further to form an individual pump housing 24 .
- the block 54 is firstly deburred in step 19 .
- the individual block 54 is surveyed in steps 20 to 22 , where it is placed against various hard end stops 56 and pressed on by means of a diamond probe 58 and also a plurality of spherical probes 60 .
- FIGS. 2 to 4 illustrate how the thus prepared and surveyed block 54 of a pump housing 24 is provided with openings 62 in a first clamping system.
- the block 54 is identified in its position by means of the web-shaped markings 45 and is oriented in such a way that it is placed against an end stop 64 with its side face 63 (top side) which lies opposite the markings 45 .
- the block 54 is pressed against the end stop 64 by means of such a great force 66 that it can be cut at the side face 63 by means of a tool 68 in order to form one of the openings 62 there.
- FIG. 4 shows, in this respect, the associated clamping apparatus 70 , on which in total twelve blocks 54 , as illustrated individually in FIG. 3 , are held.
- FIG. 5 shows the thus prepared block 54 with its openings 62 , where one of the openings 62 has been provided with an undercut 72 .
- this block 54 is pulled against an end stop 76 by means of a holding tool 74 , in order to thus hold it in a second clamping system, as shown in FIG. 6 . Clamped in this way, the block 54 can be over-milled with a milling cutter 78 on that side face 79 (bottom side) on which the markings 45 were located. Furthermore, further openings 62 can be formed on this side face 79 using tools 68 .
- FIG. 7 again illustrates an associated clamping apparatus 78 for this second clamping system with its total of twelve holding tools 74 .
- FIGS. 8 to 15 illustrate the procedure according to the disclosure.
- FIG. 8 shows a first exemplary embodiment of the step-by-step production of a pump housing 24 according to the disclosure.
- steps 10 to 14 are substantially the same as those in FIG. 1 , where already in step 14 there is a difference in that the strands 42 are not provided with web-shaped markings 45 , but rather instead have a substantially rectangular cross section 80 .
- Steps 15 to 17 correspond to those steps in FIG. 1 .
- Step 17 which involves the annealing of the prepared strands 42 , is followed in FIG. 8 , however, by a new step 82 , in which a blank in the form of one strand 42 or a plurality of strands 42 is brought in its thickness to a tolerance 86 of less than 0.1 mm by means of rollers 84 lying opposite one another.
- This tolerance 86 can be produced so as to be stable throughout the manufacturing process in such a manner that, although step 19 for deburring and steps 20 and 22 still take place in the subsequent process after sawing in step 18 , one of the surveying steps, specifically step 21 , can be dispensed with. It can also be identified in particular in the illustration of step 19 as shown in FIG. 8 that the block 54 formed to thickness dimensions has no markings 45 , and instead has a rectangular cross section 80 there.
- FIG. 9 illustrates a further exemplary embodiment of the step-by-step production of a pump housing 24 according to the disclosure, in which steps 10 to 17 and 18 to 20 and also 22 correspond to those in FIG. 8 .
- the strand or strands 42 are not formed to a thickness dimension with a very small tolerance 86 with rollers, but rather with a ram 88 and a counterbearing 90 .
- FIGS. 10 to 12 show how the thus prepared block 54 according to the disclosure is further processed in a first clamping system with a clamping apparatus 70 .
- This clamping system corresponds substantially to that shown in FIGS. 3 and 4 , but it should be noted that no web-shaped markings 45 are to be found on the block 54 as shown in FIG. 10 and also no undercut 72 is to be formed.
- FIGS. 13 to 15 then show the second clamping system for the block 54 according to the disclosure, in which the block 54 no longer needs to be over-milled and there is also no longer a need for an undercut 72 or a holding tool 74 to be able to hold it on the associated clamping apparatus 70 .
- the block 54 can be pressed against an end stop 76 in a conventional manner using a force 66 and machined by means of a tool 68 , in order to form openings 62 therein.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Regulating Braking Force (AREA)
- Forging (AREA)
Abstract
In a pump housing, in block form, of a vehicle brake system, having a top side which is manufactured to final dimensions and a bottom side which is manufactured to final dimensions, the final dimensions of the top side and of the bottom side are obtained by means of a non-cutting deformation process starting from a blank.
Description
- This application is a divisional application of copending U.S. patent application Ser. No. 13/991,026, filed on Aug. 16, 2013, which is a 35 U.S.C. §371 National Stage Application of PCT/EP2011/067961, filed on Oct. 14, 2011, which claims the benefit of priority to Serial No. DE 10 2010 062 270.2, filed on Dec. 1, 2010 in Germany, the disclosures of which are incorporated herein by reference in their entirety.
- The disclosure relates to a block-form pump housing of a vehicle brake system, having a top side manufactured to final dimensions and a bottom side manufactured to final dimensions, and also to a process for producing such a block-form pump housing.
- Block-form pump housings of vehicle brake systems are produced as what are known as hydraulic blocks generally from aluminum. In this case, use is made of a manufacturing process in which firstly crude aluminum is processed to form semifinished rod product. The rods are then sawn into blocks, which are worked to final dimensions on at least one side by means of cutting manufacturing, generally a milling process. Otherwise, the dimensional tolerances which are required for the further processing for the pump housing cannot be produced.
- The disclosure is based on the object of providing a pump housing of a vehicle brake system which can be produced more cost-effectively.
- The invention provides a block-form pump housing of a vehicle brake system and a process for the production thereof, having a top side manufactured to final dimensions and a bottom side manufactured to final dimensions, in which the final dimensions of the top side and of the bottom side have been or are produced by means of a non-cutting forming process from a blank.
- According to the disclosure, the blank of the pump housing is initially sawn in the form of aluminum rods in particular after an extrusion process and then formed without cutting. Forming embraces all manufacturing processes in which metals in particular are changed plastically in a targeted manner to a different shape. Reference is also made to plastic shaping. Here, it is often the case that firstly a primary formed (for example cast) primary material (a strand from continuous casting or an ingot from ingot casting) is formed into a semifinished product or a blank. The mass and the cohesion of the material are retained during the forming, even though the density of the material can change. Forming differs from deforming in that the change in shape is made in a targeted manner.
- The procedure according to the disclosure removes the costs for cutting machining and furthermore also for deburring on at least one side of the pump housing. The surface machined without cutting affords more protection against corrosion, as a result of which costs for sealing the surface can be saved. Alternatively, the protection of the surface can be provided during the production of the blank, because the surface is no longer subjected to cutting.
- The weight of the blank can be reduced, since the oversize of approximately 0.5 mm available for the cutting manufacturing can be dispensed with. This results in a further cost saving in relation to the consumption of raw material.
- It is also the case that identification is no longer required for the individual sides or surfaces of the block-form pump housing, since these are produced with the same quality. Further costs are therefore dropped. A 100% check of the dimensions is also no longer necessary, since these can surprisingly be produced with a particular process reliability by means of non-cutting forming. This applies in particular to the large quantities desired for vehicle brake systems. The procedure according to the disclosure makes it possible to ensure a high stability of the shape and dimensions throughout the production process.
- Finally, there is also no need to provide particular holding surfaces for fastening during cutting machining. Forces which need to be resisted arise in a plurality of axes in the case of such cutting machining. To this end, in production processes to date, a special clamping pocket was provided with an undercut for the second clamping position, in particular, on the pump housing.
- Pressing, in particular pressing with at least one roller or alternatively with at least one ram, is preferably carried out as the non-cutting forming process.
- The blank is preferably produced by means of an extrusion process.
- The final dimensions of the top side and of the bottom side are preferably produced to a tolerance of less than 0.1 mm. The non-cutting forming brings the blank into the block thickness mentioned in the range of 0.5 mm to 0.2 mm, without cutting machining being required. During the cutting of openings in the block-form pump housing following the procedure according to the disclosure, attention then no longer has to be paid to the orientation of the pump housing, because the first and the second clamping positions for these operations for cutting openings are conceptually equivalent.
- After the non-cutting forming process, the pump housing is in particular provided with surface protection. Anodization or an atmospheric protection with plasma is advantageously provided as the surface protection.
- An exemplary embodiment of the solution according to the disclosure will be explained in more detail hereinbelow with reference to the accompanying schematic drawings, in which:
-
FIG. 1 shows a sequence of steps for producing a block-form pump housing according to the prior art, -
FIG. 2 shows a perspective view of a pump housing having a top side manufactured to final dimensions and a bottom side manufactured to final dimensions according to the prior art, before the first cutting of openings, -
FIG. 3 shows a side view of the pump housing as shown inFIG. 2 in its first clamping apparatus, -
FIG. 4 shows a perspective view of a first clamping arrangement as a whole with first clamping apparatuses as shown inFIG. 3 , -
FIG. 5 shows a perspective view of a pump housing having a top side manufactured to final dimensions and a bottom side manufactured to final dimensions according to the prior art, before the second cutting of openings, -
FIG. 6 shows a side view of the pump housing as shown inFIG. 5 in its second clamping apparatus, -
FIG. 7 shows a perspective view of a second clamping arrangement as a whole with second clamping apparatuses as shown inFIG. 6 , -
FIG. 8 shows a sequence of steps for producing a block-form pump housing according to a first exemplary embodiment of the disclosure, -
FIG. 9 shows a sequence of steps for producing a block-form pump housing according to a second exemplary embodiment of the disclosure, -
FIG. 10 shows a perspective view of a pump housing having a top side manufactured to final dimensions and a bottom side manufactured to final dimensions according to the disclosure, before the first cutting of openings, -
FIG. 11 shows a side view of the pump housing as shown inFIG. 10 in its first clamping apparatus, -
FIG. 12 shows a perspective view of a first clamping arrangement as a whole with first clamping apparatuses as shown inFIG. 11 , -
FIG. 13 shows a perspective view of a pump housing having a top side manufactured to final dimensions and a bottom side manufactured to final dimensions according to the disclosure, before the second cutting of openings, -
FIG. 14 shows a side view of the pump housing as shown inFIG. 13 in its second clamping apparatus, and -
FIG. 15 shows a perspective view of a second clamping arrangement as a whole with second clamping apparatuses as shown inFIG. 14 . -
FIG. 1 illustratesindividual steps 10 to 22 for producing a block-form pump housing 24 according to the prior art. Instep 10,liquid aluminum 26 is introduced into achill 28 androd stock 30 is cast at a temperature of approximately 650° C. Therod stock 30 is annealed in afurnace 32 instep 11. Instep 12, therod stock 30 is over-turned and sawn intorod portions 34 with a length of approximately 1500 mm. Instep 13, theindividual rod portion 34 is then surveyed with aprobe 36 with respect to its calibrated standard defect size. - In
step 14, six rod portions 34 (only one is shown) are processed in parallel in an extrusion process by means of anextruder 38 at approximately 450° C. at adischarge nozzle 40 to form astrand 42, which is then cooled to approximately 520° C. at acooling system 44. Theindividual strand 42 here does not have a purely rectangular cross section, but rather is provided on one of its side faces with two web-shaped, longitudinally directedmarkings 45. Instep 15, a plurality ofsuch strands 42 are stretched to a length of approximately 20 m at astretching device 46, and then theend portions 48 of the stretchedstrands 42 are sawn off at the ends. - These
steps 10 to 16 are followed bystep 17, in which the preparedstrands 42 are annealed in afurnace 50 at a temperature of approximately 175° C. Then, instep 18, the annealedstrands 42 are sawn intoindividual blocks 54 by means of asaw 52. Each of theseblocks 54 is then processed further to form anindividual pump housing 24. In this case, theblock 54 is firstly deburred instep 19. Then, theindividual block 54 is surveyed insteps 20 to 22, where it is placed against various hard end stops 56 and pressed on by means of adiamond probe 58 and also a plurality ofspherical probes 60. -
FIGS. 2 to 4 illustrate how the thus prepared and surveyedblock 54 of apump housing 24 is provided withopenings 62 in a first clamping system. Theblock 54 is identified in its position by means of the web-shapedmarkings 45 and is oriented in such a way that it is placed against anend stop 64 with its side face 63 (top side) which lies opposite themarkings 45. In this case, theblock 54 is pressed against theend stop 64 by means of such agreat force 66 that it can be cut at theside face 63 by means of atool 68 in order to form one of theopenings 62 there. -
FIG. 4 shows, in this respect, the associated clampingapparatus 70, on which in total twelveblocks 54, as illustrated individually inFIG. 3 , are held. -
FIG. 5 shows the thusprepared block 54 with itsopenings 62, where one of theopenings 62 has been provided with an undercut 72. At this undercut 72, thisblock 54 is pulled against anend stop 76 by means of a holdingtool 74, in order to thus hold it in a second clamping system, as shown inFIG. 6 . Clamped in this way, theblock 54 can be over-milled with amilling cutter 78 on that side face 79 (bottom side) on which themarkings 45 were located. Furthermore,further openings 62 can be formed on this side face 79 usingtools 68. -
FIG. 7 , in this respect, again illustrates an associated clampingapparatus 78 for this second clamping system with its total of twelveholding tools 74. -
FIGS. 8 to 15 illustrate the procedure according to the disclosure. Thus,FIG. 8 shows a first exemplary embodiment of the step-by-step production of apump housing 24 according to the disclosure. In this production process, steps 10 to 14 are substantially the same as those inFIG. 1 , where already instep 14 there is a difference in that thestrands 42 are not provided with web-shapedmarkings 45, but rather instead have a substantiallyrectangular cross section 80.Steps 15 to 17, too, correspond to those steps inFIG. 1 . -
Step 17, which involves the annealing of theprepared strands 42, is followed inFIG. 8 , however, by anew step 82, in which a blank in the form of onestrand 42 or a plurality ofstrands 42 is brought in its thickness to atolerance 86 of less than 0.1 mm by means ofrollers 84 lying opposite one another. Thistolerance 86 can be produced so as to be stable throughout the manufacturing process in such a manner that, althoughstep 19 for deburring and steps 20 and 22 still take place in the subsequent process after sawing instep 18, one of the surveying steps, specifically step 21, can be dispensed with. It can also be identified in particular in the illustration ofstep 19 as shown inFIG. 8 that theblock 54 formed to thickness dimensions has nomarkings 45, and instead has arectangular cross section 80 there. -
FIG. 9 illustrates a further exemplary embodiment of the step-by-step production of apump housing 24 according to the disclosure, in which steps 10 to 17 and 18 to 20 and also 22 correspond to those inFIG. 8 . In this exemplary embodiment, instep 82, the strand orstrands 42 are not formed to a thickness dimension with a verysmall tolerance 86 with rollers, but rather with aram 88 and acounterbearing 90. -
FIGS. 10 to 12 show how the thusprepared block 54 according to the disclosure is further processed in a first clamping system with a clampingapparatus 70. This clamping system corresponds substantially to that shown inFIGS. 3 and 4 , but it should be noted that no web-shapedmarkings 45 are to be found on theblock 54 as shown inFIG. 10 and also no undercut 72 is to be formed. -
FIGS. 13 to 15 then show the second clamping system for theblock 54 according to the disclosure, in which theblock 54 no longer needs to be over-milled and there is also no longer a need for an undercut 72 or a holdingtool 74 to be able to hold it on the associated clampingapparatus 70. Instead, as shown inFIG. 14 , theblock 54 can be pressed against anend stop 76 in a conventional manner using aforce 66 and machined by means of atool 68, in order to formopenings 62 therein.
Claims (11)
1-5. (canceled)
6. A process for producing a block-form pump housing of a vehicle brake system, comprising:
manufacturing a top side of the block-form pump housing to first dimensions from a blank by a non-cutting forming process
manufacturing a bottom side of the block-form pump housing to second dimensions from the blank by the non-cutting forming process.
7. The process as claimed in claim 6 , further comprising:
pressing the blank with rollers to manufacture the top side to the first dimensions and the bottom side to the second dimensions.
8. The process as claimed in claim 6 , further comprising:
producing the blank using an extrusion process.
9. The process as claimed in claim 6 , further comprising:
producing the first dimensions of the top side and the second dimensions of the bottom side to a tolerance of less than 0.1 mm.
10. The process as claimed in claim 6 , further comprising:
applying a surface protection to the block-form pump housing after the non-cutting forming process.
11. A process for producing block-form pump housings of for vehicle brake systems, comprising:
preparing, with an extrusion process, a blank which is formed as a strand;
producing final dimensions of a top side and a bottom side of the blank using a non-cutting forming process, wherein a thickness dimension of the blank is determined with the final dimensions of the top side and the bottom side to enable openings to be formed in the top side and the bottom side; and
after producing the final dimensions, sawing the blank into individual blocks.
12. The process as claimed in claim 11 , wherein the non-cutting forming process includes pressing the blank with rollers.
13. The process as claimed in claim 11 , wherein the producing of the final dimensions includes producing the final dimensions of the top side and the bottom side of the blank to a tolerance of less than 0.1 mm.
14. The process as claimed in claim 11 , further comprising:
applying a surface protection to one of the blank and the individual blocks after the non-cutting forming process.
15. The process as claimed in claim 11 , further comprising:
forming the openings in the top side and the bottom side of the individual blocks.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/958,707 US20160084261A1 (en) | 2010-12-01 | 2015-12-03 | Pump Housing, in Block Form, of a Vehicle Brake System, and Method for Producing the Same |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010062270A DE102010062270A1 (en) | 2010-12-01 | 2010-12-01 | Block-shaped pump housing of a vehicle brake system and method for its production |
DE102010062270.2 | 2010-12-01 | ||
PCT/EP2011/067961 WO2012072324A1 (en) | 2010-12-01 | 2011-10-14 | Pump housing, in block form, of a vehicle brake system, and method for producing the same |
US201313991026A | 2013-08-16 | 2013-08-16 | |
US14/958,707 US20160084261A1 (en) | 2010-12-01 | 2015-12-03 | Pump Housing, in Block Form, of a Vehicle Brake System, and Method for Producing the Same |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/991,026 Division US20130330181A1 (en) | 2010-12-01 | 2011-10-14 | Pump Housing, in Block Form, of a Vehicle Brake System, and Method for Producing the Same |
PCT/EP2011/067961 Division WO2012072324A1 (en) | 2010-12-01 | 2011-10-14 | Pump housing, in block form, of a vehicle brake system, and method for producing the same |
Publications (1)
Publication Number | Publication Date |
---|---|
US20160084261A1 true US20160084261A1 (en) | 2016-03-24 |
Family
ID=44801014
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/991,026 Abandoned US20130330181A1 (en) | 2010-12-01 | 2011-10-14 | Pump Housing, in Block Form, of a Vehicle Brake System, and Method for Producing the Same |
US14/958,707 Abandoned US20160084261A1 (en) | 2010-12-01 | 2015-12-03 | Pump Housing, in Block Form, of a Vehicle Brake System, and Method for Producing the Same |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/991,026 Abandoned US20130330181A1 (en) | 2010-12-01 | 2011-10-14 | Pump Housing, in Block Form, of a Vehicle Brake System, and Method for Producing the Same |
Country Status (6)
Country | Link |
---|---|
US (2) | US20130330181A1 (en) |
EP (1) | EP2646299B1 (en) |
JP (1) | JP5961179B2 (en) |
KR (1) | KR101970463B1 (en) |
DE (1) | DE102010062270A1 (en) |
WO (1) | WO2012072324A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013223216B4 (en) | 2013-11-14 | 2023-02-16 | Robert Bosch Gmbh | Block-shaped housing of a hydraulic unit of a vehicle brake system |
US20200232450A9 (en) * | 2015-09-29 | 2020-07-23 | Kerr Machine Co. | Multi-Piece Fluid End |
WO2018019426A1 (en) * | 2016-07-29 | 2018-02-01 | Loadlok International Bv | Lightweight metal extruded semifinished product in strip form, method and structure for the production thereof |
JP6640135B2 (en) * | 2017-02-17 | 2020-02-05 | 日信工業株式会社 | Assembly of base body of vehicle brake fluid pressure control device and method of manufacturing base assembly of vehicle brake fluid pressure control device |
JP6606520B2 (en) * | 2017-02-17 | 2019-11-13 | 日信工業株式会社 | Brake hydraulic pressure control device for vehicles |
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Also Published As
Publication number | Publication date |
---|---|
JP5961179B2 (en) | 2016-08-02 |
EP2646299A1 (en) | 2013-10-09 |
KR20130116274A (en) | 2013-10-23 |
KR101970463B1 (en) | 2019-04-19 |
DE102010062270A1 (en) | 2012-06-06 |
US20130330181A1 (en) | 2013-12-12 |
CN103228512A (en) | 2013-07-31 |
EP2646299B1 (en) | 2015-09-16 |
JP2013544211A (en) | 2013-12-12 |
WO2012072324A1 (en) | 2012-06-07 |
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