Machining clamp for circulating cooling water pump of automobile engine

Abstract

The utility model discloses an automobile engine circulating cooling water pump machining clamp which comprises a clamp base, and cooling water pump shell positioning mechanisms are assembled and connected to the two sides of the top of the clamp base respectively. Each water pump shell positioning mechanism comprises an annular positioning seat fixedly installed at the top of the clamp base. The water pump shell is fed and limited in the annular positioning seat; the clamp further comprises a push rod mechanism. The push rod mechanism comprises positioning rods which are slidably connected to the side walls, facing each other, of the annular positioning base. The positioning rod is sleeved with a reset spring. The push rod mechanism further comprises a push wheel assembly arranged between the push plates, the push wheel assembly comprises a rotating arm plate, and the two ends of the rotating arm plate are rotationally connected with push wheels correspondingly. The push wheel assembly further comprises a motor for driving the rotating arm plate to rotate. By means of the mode, the pump shell can be rapidly positioned, the pump shells on the two sides can be synchronously positioned, and the efficiency of feeding, positioning and locking of the pump shell is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automotive engine cooling water pumps, and particularly relates to a processing fixture for an automotive engine circulating cooling water pump. Background Art

[0002] An automotive engine is a power component of an automobile. During the operation of the engine, a large amount of heat energy is easily generated in the engine. If the engine is not cooled and its temperature is not reduced in time, it is very easy to cause damage to the engine in a high-temperature environment. Therefore, in the prior art, a cooling channel is opened on the cylinder block of the engine, and a cooling water pump is used to circulate and pump the coolant into the engine to achieve the cooling of the engine.

[0003] Therefore, the cooling water pump is a key component for the engine to achieve cooling. The main structure of the cooling water pump includes a pump housing and mechanisms such as an impeller installed in the pump housing. The pump housing of the water pump is the core of the water pump. Specifically, due to its very large degree of non - standard shape, the production technology requirements for the pump housing are relatively high during the production and processing of the water pump.

[0004] It is reflected that when processing a pump housing with a high degree of non - standard shape, such as opening holes or slots on the pump housing, the pump housing needs to be locked on the tooling. First, it is relatively difficult to lock a pump housing with a high degree of non - standard shape. Second, for the pump housing loaded on the tooling fixture, because it is difficult to lock, different pump housings are often locked through independent locking structures, such as locking by a pressure rod method. Obviously, the disadvantage of this method is that it is necessary to lock each pump housing one by one, resulting in low automation during the loading and locking process. The direct impact is that in the mass production process, the production efficiency is not high, mainly because it is difficult and time - consuming in the process of loading, positioning and locking the housing with a high degree of non - standard shape.

[0005] Therefore, improving the tooling has become a technical problem that the production workshop urgently needs to overcome to greatly improve the production efficiency. Summary of the Utility Model

[0006] Based on the above background, the purpose of the utility model is to provide a processing fixture for an automotive engine circulating cooling water pump.

[0007] To achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A processing fixture for an automotive engine circulating cooling water pump includes a fixture base, and cooling water pump housing positioning mechanisms are respectively assembled and connected to both sides of the top of the fixture base;

[0009] Each of the water pump housing positioning mechanisms includes an annular positioning seat fixedly installed at the top position of the fixture base; the water pump housing is loaded and limited within the annular positioning seat;

[0010] The machining fixture for the automotive engine circulating cooling water pump further includes a push rod mechanism for synchronously locking the water pump housing within the annular positioning seats on both sides;

[0011] The push rod mechanism includes positioning rods respectively slidingly connected to the mutually facing side walls of the annular positioning seats;

[0012] A return spring is sleeved on the positioning rod;

[0013] Push plates are fixedly connected to the positioning rods. The push rod mechanism further includes a push wheel assembly disposed between the push plates. The push wheel assembly includes a rotating arm plate, and push wheels are respectively rotatably connected to both ends of the rotating arm plate;

[0014] The push wheel assembly further includes a motor for driving the rotation of the rotating arm plate;

[0015] Before positioning, the rotating arm plate is parallel to the push plate. During the positioning process, the motor drives the rotation of the rotating arm plate, and the push wheels on both sides abut against the push plate, pushing the push plate to move the positioning rods synchronously in opposite directions and tightly abut against the water pump housing.

[0016] Preferably, the push rod mechanism includes a first positioning rod respectively slidingly connected to the left annular positioning seat and a second positioning rod slidingly connected to the right annular positioning seat;

[0017] Through sliding holes corresponding to the first positioning rod and the second positioning rod are respectively formed in the annular positioning seats.

[0018] Preferably, both ends of the return spring are respectively fixedly connected to the mutually facing side walls of the annular positioning seat and the push plate.

[0019] Preferably, the transverse cross-sectional shape of the rotating arm plate is rectangular;

[0020] The length of the rotating arm plate is greater than the distance between the push plates on both sides.

[0021] Preferably, push wheels are respectively rotatably connected to the top and bottom of the front and rear ends of the rotating arm plate.

[0022] Preferably, a plurality of brackets are fixedly connected to the bottom of the annular positioning seat, and the brackets are fixedly installed at the top of the fixture base.

[0023] Preferably, a plurality of circumferentially distributed locking rod mechanisms are installed on the top of the annular positioning seat.

[0024] Preferably, the locking rod mechanism includes a locking rod, and a locking convex is integrally formed at the bottom of the inner end of the locking rod;

[0025] The central part of the locking rod is rotatably connected to a locking rod seat through a rotating shaft; the locking rod seat is fixedly installed on the top of the annular positioning seat;

[0026] A long sliding opening is formed at the outer end of the locking rod. A pushing sliding rod is connected in the long sliding opening in a limited sliding manner. The pushing sliding rod is fixedly connected with a vertically arranged push rod, and a cylinder is installed at the bottom of the push rod.

[0027] Preferably, the bottom of the cylinder is fixedly installed on the outer side wall of the annular positioning seat through a cylinder barrel frame.

[0028] The utility model has the following beneficial effects:

[0029] 1. During the processing of the pump casing, under normal circumstances, the rotating arm plate and the push plate remain parallel, and the length of the rectangular rotating arm plate is greater than the distance between the two side push plates. At this time, the inner ends of the first positioning rod and the second positioning rod are located in the through sliding holes on the annular positioning seat but do not penetrate the annular positioning seat.

[0030] After the pump casing is loaded, at this time, the motor works. Since the length of the rotating arm plate is greater than the distance between the push plates, during the process of the rotating arm plate rotating from the horizontal direction to the vertical direction, the push wheels rotatably connected to both ends of the rotating arm plate continuously abut against and push the push plates. During the process of pushing the push plates, the push plates push the first positioning rod and the second positioning rod to slide into the annular positioning seat in which they are slidably connected respectively and abut tightly against the pump casing.

[0031] The rapid positioning of the pump casing is realized in the above way, and the synchronous positioning of the two side pump casings is realized, greatly improving the efficiency of loading, positioning and locking the pump casing, and this positioning method can cooperate with the annular positioning seat to fully lock the pump casing.

[0032] 2. When the processing is completed, at this time, under the drive of the motor, the rotating arm plate switches from the vertical push plate mode to the parallel push plate mode. During this process, the push wheels gradually disengage from the push plates. With the cooperation of the return springs, the first positioning rod and the second positioning rod release the pump casing and reset. The rapid release of the pump casing after the processing is completed is realized in this way. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0034] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present utility model;

[0035] Figure 2 It is a schematic diagram of the structure of the push rod mechanism in the embodiment of the present utility model;

[0036] Figure 3 This is a schematic structural diagram of the lock rod mechanism in the embodiment of the present utility model;

[0037] Figure 4 For the embodiment of the present utility model Figure 1 Front view.

[0038] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0039] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0040] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0041] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0042] Embodiment 1

[0043] As Figures 1-4 shown, a processing fixture for an automotive engine circulating cooling water pump includes a fixture base 1. According to the existing method, the fixture base 1 is fixedly installed on a workbench or a fixture table on a vehicle through a plurality of mounting foot plates installed on the side wall.

[0044] On the left and right sides of the top of the fixture base 1, a cooling water pump housing positioning mechanism is respectively assembled and connected. It can synchronously process two water pump housings during the processing.

[0045] The specific structure of the water pump housing positioning mechanism is as follows:

[0046] The water pump housing positioning mechanism includes a ring-shaped positioning seat 2 fixedly installed at the top of the fixture base 1; the water pump housing is loaded and limited within the ring-shaped positioning seat 2. To improve the stability of the positioning after loading, a limiting convex post 11 is fixedly installed at the top of the fixture base 1. After the housing is loaded, the mounting holes on the pump housing are aligned with the limiting convex post 11.

[0047] After the pump housing is loaded, to synchronously position the pump housings on both sides simultaneously and achieve rapid positioning and locking, the above-mentioned machining fixture for the automotive engine circulating cooling water pump further includes a push rod mechanism 4 for synchronously locking the water pump housings within the ring-shaped positioning seats 2 on both sides. The push rod mechanism 4 is located at the central position between the ring-shaped positioning seats 2 on both sides.

[0048] The specific structure is as follows: the push rod mechanism 4 includes positioning rods respectively slidably connected to the mutually facing side walls of the ring-shaped positioning seat 2; specifically, the push rod mechanism 4 includes a first positioning rod 42 slidably connected to the left ring-shaped positioning seat 2 and a second positioning rod 43 slidably connected to the right ring-shaped positioning seat 2 (correspondingly, through sliding holes corresponding to the first positioning rod 42 and the second positioning rod 43 are respectively formed on the ring-shaped positioning seat 2).

[0049] A return spring 47 is sleeved on each of the first positioning rod 42 and the second positioning rod 43, facilitating rapid resetting during the subsequent process of releasing the pump housing.

[0050] Meanwhile, push plates 41 are fixedly connected to both the first positioning rod 42 and the second positioning rod 43 (the two ends of the above-mentioned return spring 47 are respectively fixedly connected to the mutually facing side walls of the ring-shaped positioning seat 2 and the push plate 41). The push rod mechanism 4 further includes a push wheel assembly arranged between the push plates 41. The push wheel assembly includes a rotating arm plate 44, and push wheels 45 are respectively rotatably connected to both ends of the rotating arm plate 44 (specifically: push wheels 45 are respectively rotatably connected to the top and bottom of the front and rear ends of the rotating arm plate 44); the push wheel 45 assembly further includes a motor 46 for driving the rotation of the rotating arm plate 44. In the conventional manner, an installation groove for installing the motor 46 is formed on the fixture base 1, the motor 46 is fixedly installed in the groove, and the bottom of the fixture base 1 is fastened to the motor 46 by bolts. The output shaft of the motor 46 is fixedly installed at the central position of the bottom of the rotating arm plate 44.

[0051] Under normal circumstances, the rotating arm plate 44 is parallel to the push plate 41, and the length of the rectangular rotating arm plate 44 is greater than the distance between the push plates 41 on both sides. At this time, the inner ends of the first positioning rod 42 and the second positioning rod 43 are located within the through sliding holes on the ring-shaped positioning seat 2 and do not penetrate the ring-shaped positioning seat 2.

[0052] After the pump housing is loaded, at this time, the motor 46 operates. Since the length of the rotating arm plate 44 is greater than the distance between the push plates 41, as the rotating arm plate 44 rotates from the horizontal direction to the vertical direction, the push wheels 45 rotatably connected to both ends of the rotating arm plate continuously contact and push the push plates 41. During the process of pushing the push plates 41, the push plates 41 push the first positioning rod 42 and the second positioning rod 43 to slide into the sliding-connected annular positioning seat 2 respectively and press tightly against the pump housing.

[0053] In the above way, the pump housing can be quickly positioned and synchronously positioned.

[0054] When the processing is completed, at this time, under the drive of the motor 46, the rotating arm plate 44 switches from the vertical pushing mode of the push plate 41 to the parallel pushing mode of the push plate 41. During this process, the push wheels 45 gradually disengage from the push plates 41. With the cooperation of the return spring 47, the first positioning rod 42 and the second positioning rod 43 release the pump housing and reset.

[0055] Embodiment 2

[0056] As Figures 1-4 shown, on the basis of the structure of Embodiment 1 in this embodiment, during the processing of the pump housing, in order to further lock the pump housing and avoid situations such as the pump housing becoming unstable due to the pump housing moving around, several brackets are fixedly connected to the bottom of the above-mentioned annular positioning seat 2, and the brackets are fixedly installed at the top of the fixture base 1.

[0057] At the same time, several circumferentially distributed locking rod mechanisms 3 are installed on the top of the annular positioning seat 2. The locking rod mechanism 3 includes a locking rod 31, and a locking convex 311 is integrally formed at the bottom of the inner end of the locking rod 31. At the same time, the central part of the locking rod 31 is rotatably connected to a locking rod seat 32 through a rotating shaft (the locking rod 31 is fixedly connected to the rotating shaft, the rotating shaft is rotatably connected to the locking rod seat 32, the bottom of the locking rod seat 32 is fixedly connected with a mounting seat 321, and the mounting seat 321 is fixedly installed on the top of the annular positioning seat 2); the locking rod seat 32 is fixedly installed on the top of the annular positioning seat 2.

[0058] At the same time, a long sliding opening 312 is formed at the outer end of the locking rod 31, and a pushing sliding rod 34 is slidably connected in the long sliding opening 312 in a limited manner. The pushing sliding rod 34 is fixedly connected with a vertically arranged push rod, and a cylinder 33 is installed at the bottom of the push rod (specifically, the piston rod of the cylinder 33 is fixedly installed on the push rod). The bottom of the cylinder 33 is fixedly installed on the outer side wall of the annular positioning seat 2 through a cylinder frame.

[0059] During the working process, when the cylinder 33 drives the push rod to move upward, at this time, since the pushing sliding rod 34 is slidably connected in the long sliding opening in a limited manner, therefore, under the upward pushing action of the pushing sliding rod 34, the locking rod 31 turns downward until the locking convex 311 locks and presses on the top periphery of the pump housing. By this way, the stability of locking the pump housing is further increased. The defect that the pump housing moves around during the processing is avoided.

[0060] In the actual working process, according to the processing requirements, such as conventional hole-opening processing, the locking stability of the housing can be maintained by locking the above-mentioned push rod mechanism 4. Specifically, as the pump housing is gradually made of alloy materials with the development of material technology and shows a trend of being light in texture, for pump housings that are light in texture and small in size, there is no need to lock them again by the lock rod 31 method.

[0061] Certainly, the above description is not a limitation to the present utility model, and the present utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the scope of the essence of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A processing fixture for an automotive engine circulating cooling water pump, characterized in that It includes a fixture base, and cooling water pump housing positioning mechanisms are respectively assembled and connected to both sides of the top of the fixture base; Each of the water pump housing positioning mechanisms includes an annular positioning seat fixedly installed at the top of the fixture base; the water pump housing is loaded and limited within the annular positioning seat; The machining fixture for the automotive engine circulating cooling water pump further includes a push rod mechanism for synchronously locking the water pump housings within the annular positioning seats on both sides; The push rod mechanism includes positioning rods respectively slidably connected to the mutually facing side walls of the annular positioning seats; A return spring is sleeved on the positioning rod; Push plates are fixedly connected to the positioning rods. The push rod mechanism further includes a push wheel assembly arranged between the push plates. The push wheel assembly includes a rotating arm plate, and push wheels are respectively rotatably connected to both ends of the rotating arm plate; The push wheel assembly further includes a motor for driving the rotation of the rotating arm plate; Before positioning, the rotating arm plate is parallel to the push plate. During the positioning process, the motor drives the rotation of the rotating arm plate, and the push wheels on both sides abut against the push plate, pushing the push plate to move the positioning rods synchronously in opposite directions and tightly against the water pump housing.

2. The machining fixture for the automotive engine circulating cooling water pump according to claim 1, characterized in that, The push rod mechanism includes a first positioning rod slidably connected to the left annular positioning seat and a second positioning rod slidably connected to the right annular positioning seat; Through sliding holes corresponding to the first positioning rod and the second positioning rod are respectively formed in the annular positioning seat; 3. The machining fixture for the automotive engine circulating cooling water pump according to claim 2, characterized in that, Both ends of the return spring are respectively fixedly connected to the mutually facing side walls of the annular positioning seat and the push plate; 4. The machining fixture for the automotive engine circulating cooling water pump according to claim 1, characterized in that, The transverse cross-sectional shape of the rotating arm plate is rectangular; The length of the rotating arm plate is greater than the distance between the push plates on both sides; 5. The machining fixture for the automotive engine circulating cooling water pump according to claim 4, characterized in that, Push wheels are respectively rotatably connected to the top and bottom of the front and rear ends of the rotating arm plate; 6. The machining fixture for the automotive engine circulating cooling water pump according to claim 1, characterized in that, A plurality of brackets are fixedly connected to the bottom of the annular positioning seat, and the brackets are fixedly installed at the top of the fixture base; 7. The machining fixture for the automotive engine circulating cooling water pump according to claim 1, characterized in that, A plurality of lock rod mechanisms distributed in a circumferential manner are installed on the top of the annular positioning seat; 8. The machining fixture for the automotive engine circulating cooling water pump according to claim 7, wherein, The lock rod mechanism includes a lock rod, and a lock convex is integrally formed at the bottom of the inner end of the lock rod; The central part of the lock rod is rotatably connected to a lock rod seat through a rotating shaft; the lock rod seat is fixedly installed on the top of the annular positioning seat; A long sliding opening is formed at the outer end of the lock rod, and a pushing sliding rod is limited and slidably connected within the long sliding opening. The pushing sliding rod is fixedly connected to a vertically arranged push rod, and a cylinder is installed at the bottom of the push rod; 9. The machining fixture for the automotive engine circulating cooling water pump according to claim 8, characterized in that, The bottom of the cylinder is fixedly installed on the outer side wall of the annular positioning seat through a cylinder frame;

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