CN107825146B

CN107825146B - Plain type hydraulic hammer shell processing equipment system

Info

Publication number: CN107825146B
Application number: CN201711331021.1A
Authority: CN
Inventors: 陶国良
Original assignee: Anhui An Tong Machinery Co Ltd
Current assignee: Anhui An Tong Machinery Co Ltd
Priority date: 2017-12-13
Filing date: 2017-12-13
Publication date: 2020-01-17
Anticipated expiration: 2037-12-13
Also published as: CN107825146A

Abstract

The invention discloses a simple hydraulic hammer shell machining and assembling system, and belongs to the field of hydraulic hammers. The bending mechanism comprises a bending mechanism, a pressing mechanism and a welding and fixing mechanism, wherein a pressing rod is arranged on the lower side of a pressing rod fixing platform of the bending mechanism, an upper pressing die with a cambered surface is arranged at the bottom end of the pressing rod, two lower pressing dies are fixed on a bending platform of the bending mechanism, the lower pressing dies are columnar, and the two lower pressing dies are symmetrically distributed about the longitudinal middle section of the pressing rod and are used for bending a top cover plate and a lining plate; the matching surfaces of the pressing block body and the pressing platform in the pressing mechanism are both planes, and a cushion block and/or a rectangular pressing rod is/are placed on the pressing platform and used for bending and leveling the side plate; the welding fixing mechanism is used for fixing the side plates and assisting in welding the top cover plate and the lining plate. The invention utilizes the simple bending mechanism to bend the workpiece, and the pressing mechanism bends the side plate and corrects the welded side plate, thereby ensuring the flatness of the side plate before assembly, and having simple device and convenient use.

Description

Plain type hydraulic hammer shell processing equipment system

Technical Field

The invention relates to the technical field of hydraulic hammers, in particular to a simple hydraulic hammer shell machining and assembling system.

Background

The hydraulic hammer is an important working tool of a hydraulic excavator, and the hydraulic hammer drives a piston to reciprocate by taking hydrostatic pressure as power, so that the piston impacts a drill rod at high speed during stroke, and the drill rod breaks solid such as ore, concrete and the like. The outer shell of the hydraulic hammer is important component equipment of the hydraulic hammer, and the welding quality of the outer shell of the hydraulic hammer directly influences the service life and the working effect of the hydraulic hammer. Although the existing welding equipment can utilize robots and the like to weld the wear-resisting plates, the clamping plates and the main hole rib plates on the side plates, the efficiency is low when the top cover plate and the lining plate are bent and processed smoothly, the side plates after being welded are deformed, and the deformation is difficult to eliminate through the adjustment of a welding process.

As shown in the figure, the outer shell mainly comprises side plates on two sides, a top cover plate and a lining plate, wherein the side plates are symmetrically arranged on the two sides, and the top cover plate is positioned on one side of an arc-shaped section of the side plates and plays a role in structural connection; the lining plate is positioned between the two side plates. When processing the equipment, at first need tailor the unloading to required each panel, then bend lamina tecti and welt, nevertheless when lamina tecti and welt are bent and are processed, if the processing equipment is too complicated, operating time probably is slower, and if adopt a processing equipment, then need satisfy the demand of processing lamina tecti and welt, consequently, have certain degree of difficulty.

In addition, during welding, the welding heat easily causes deformation of the plate, so that when the liner plate and the top cover plate are welded, a good positioning effect is difficult to achieve, and the welding quality is poor. The welding process is time-consuming and labor-consuming, and the change of internal tissues generated during welding can influence the material performance of the steel plate and the product quality, and is also a problem to be solved at present.

Disclosure of Invention

1. Technical problem to be solved by the invention

The invention aims to overcome the defect that the bending processing of a lining plate and a top cover plate of a hydraulic hammer shell is complicated in the prior art, and provides a simple hydraulic hammer shell processing and assembling system.

2. Technical scheme

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

the invention discloses a simple hydraulic hammer shell processing and assembling system, which comprises

The bending mechanism is characterized in that a pressure rod is mounted on the lower side of a pressure rod fixing table of the bending mechanism, an upper pressing die with a cambered surface is arranged at the bottom end of the pressure rod, two lower pressing dies are fixed on a bending platform of the bending mechanism, are columnar and are symmetrically distributed about the longitudinal middle section of the pressure rod and are used for bending a top cover plate and a lining plate;

the pressing mechanism is characterized in that the matching surfaces of a pressing block body and a pressing platform in the pressing mechanism are both planes, and a cushion block and/or a rectangular pressing rod is/are placed on the pressing platform and used for bending and leveling the side plates;

and the welding fixing mechanism is used for fixing the side plate, and assisting the welding of the top cover plate and the lining plate.

As a further improvement, 4 fixed table guide rods are arranged on the bending platform, and the pressure bar fixed table is connected with the fixed table guide rods in a sliding manner; a bending cylinder body is installed on a support at the top of the guide rod of the fixed table, and the pressure rod fixed table is driven to move up and down along the guide rod of the fixed table through the bending cylinder body.

As a further improvement, the center distance between the lower die and the upper die is larger than the sum of the radii of the lower die and the upper die, the gap width is 0.6-0.9 times of the radius of the upper die, and the radial dimension of the lower die is larger than that of the upper die.

As a further improvement, an upper support arranged in the pressing mechanism is supported above the pressing platform through a pressing block guide rod, a pressing cylinder body is fixed on the upper support, a piston rod of the pressing cylinder body is connected with the pressing block body, the lower surface of the pressing block body is a plane, and a cushion block and a rectangular pressing rod can be matched for bending or flattening the side plate.

As a further improvement, the two pressing cylinders are used for driving the pressing block body to move together.

As a further improvement, the welding and fixing mechanism comprises a box body and a baffle plate, wherein the box body is of a rectangular structure, through holes penetrating through the box body are formed in two ends of the side wall of the box body, two through holes are formed in each end of the box body, and positioning plates are arranged at two ends of the side wall; the baffles are symmetrically arranged along the middle section of the length direction of the box body, and the two baffles on each side of the box body are staggered with the through holes; the distance between the baffle and the positioning plate is greater than the thickness of the hydraulic hammer side plate.

As a further improvement, the distance between the baffle and the positioning plate is 1.2-1.5 times of the thickness of the side plate of the hydraulic hammer.

As a further improvement, a lantern ring is arranged on the outer side wall of the box body, the inner diameter of the lantern ring is not larger than the size of the through hole, and the lantern ring and the through hole are coaxially arranged.

As a further improvement, the number of the through holes at each end of the box body is four, the number of the positioning plates is two respectively above and below the positioning plates, and the positioning plates are positioned in the area surrounded by the four through holes.

As a further improvement, the distance between the first axle hole on the side plate and the lower edge of the side plate is smaller than the height of the through hole on the upper side of the box body, and after the side plate is fixed, the side plate is in a suspended state.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

(1) according to the simple hydraulic hammer shell processing and assembling system, the simple bending mechanism is used for bending the workpiece, the lining plate can be processed, the top cover plate can be processed, the device structure is simplified, the use is convenient, the pressing mechanism is used for correcting the bending and welding of the side plate, the flatness of the side plate before assembly can be guaranteed, and the improvement of the product quality is facilitated.

(2) According to the simple hydraulic hammer shell processing and assembling system, the pressing mechanism is utilized to bend the side plate and flatten the bent side plate, different functions are realized through different using modes of the cushion block and the rectangular pressure rod, flattening is performed before welding, the precision during welding can be ensured, and the quality problem of the welded shell caused by the self structure problem of the side plate is avoided; the welding fixing mechanism is used for positioning, so that the deformation during assembly and welding can be reduced, and the product quality is ensured.

(3) According to the simple hydraulic hammer shell processing and assembling system, the box body with the rectangular structure is used as the middle positioning piece, the baffle plate is combined to place the side plate of the hydraulic hammer shell body, the lifting and the positioning are more convenient, the side plate can be placed in the gap between the box body and the baffle plate, the positioning shaft rod can be directly installed in the through hole for positioning, and the welding positioning time is reduced; due to the fixing effect of the positioning shaft lever and the box body, deformation can be reduced during welding, the influence of stress generated during welding on the structural strength of the outer shell is reduced, and the improvement of product quality is facilitated.

(4) According to the simple hydraulic hammer shell processing and assembling system, the distance between the baffle and the positioning plate is 1.2-1.6 times of the thickness of the side plate of the hydraulic hammer, when welding is carried out, the side plate can be hoisted and placed in the gap firstly, then the other side plate is hoisted, and after the side plate is placed in the gap, a certain allowance is reserved for the thickness of the side plate due to the size of the gap, so that the side plate can be conveniently placed; although the side plates have certain shaking space, the installation of the positioning shaft rod is not influenced, the positioning use is convenient, and the time cost in the positioning process is greatly reduced.

(5) According to the simple hydraulic hammer shell processing and assembling system, the welding auxiliary device is adopted for welding the shell body, so that the positioning during welding is facilitated, and the deformation is not easy to occur during welding; the fixed rods are adopted for fixed connection before welding, and the welding sequence of the fixed rods is controlled, so that the deformation amount in the welding process can be reduced, and the generation of internal stress is reduced; in addition, for the welding process arrangement of the lining plate and the top cover plate, the influence of thermal deformation on the structural strength of the product during welding is fully considered, and the service life of the product is prolonged.

Drawings

FIG. 1 is a side view of the outer housing;

FIG. 2 is a schematic perspective view of the outer casing;

FIG. 3 is a schematic view of the construction of the liner plate;

FIG. 4 is a schematic view of a top cover plate;

FIG. 5 is a schematic view of a bending section structure of a side plate;

FIG. 6 is a schematic side view of the bending mechanism;

FIG. 7 is a schematic view of the pressing mechanism in a state of bending the side plates;

FIG. 8 is a schematic view of the side plate leveling operation of the pressing mechanism;

FIG. 9 is a schematic structural view of a welding fixture;

FIG. 10 is a schematic diagram illustrating a position structure of a fixing rod;

FIG. 11 is a schematic diagram of a position structure of a fixing rod;

FIG. 12 is a schematic view of the welding of the top cover plate;

fig. 13 is a schematic view of a welding assembly process.

The reference numerals in the schematic drawings illustrate:

1. an outer housing; 11. a top cover plate; 12. a liner plate; 121. a liner hole; 122. a trapezoidal groove; 13. a side plate; 131. a first shaft hole; 132. a second shaft hole; 133. bending sections; 134. a wear plate; 135. a clamping plate; 14. a main hole rib plate; 151. a first fixing lever; 152. a second fixing bar; 153. a third fixing bar; 154. a fourth fixing bar;

2. a welding and fixing mechanism; 21. a box body; 22. positioning a plate; 23. a through hole; 24. a collar; 25. a baffle plate;

3. a bending mechanism; 31. bending the cylinder body; 32. a pressure lever fixing table; 33. a fixed table guide rod; 34. bending the platform; 35. a pressure lever; 36. pressing the die; 37. pressing a die;

4. a pressing mechanism; 41. pressing the cylinder body; 42. an upper bracket; 43. pressing a guide rod; 44. pressing the block body; 45. pressing and flattening the platform; 46. cushion blocks; 47. a rectangular pressure lever.

Detailed Description

For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

The outer shell 1 to be welded comprises a top cover plate 11, a lining plate 12 and side plates 13, wherein the two side plates 13 are symmetrically arranged, the top cover plate 11 is welded and connected to one side of the bulge of the side plates 13, and the lining plate 12 is welded and connected between the side plates 13, as shown in fig. 1 and 2. Because the side plate 13 is large in size and weight, the side plate is difficult to fix during welding, and the influence on quality during welding is large due to inaccurate positioning. In order to ensure the positioning accuracy, the conventional welding method needs to consume a large amount of labor and a long time. In addition, as shown in fig. 3 and 4, both the top cover plate 11 and the lining plate 12 have bent portions, and are provided with trapezoidal grooves or arc-shaped open grooves at both ends, and are provided with holes at the middle portions, such as the lining plate hole 121 and the trapezoidal groove 122 on the lining plate 12 in fig. 3. If the welding method is not correct, the top cover plate 11 and the lining plate 12 are deformed, or large internal stress exists, and the product quality is influenced. The edge of the side plate 13 is welded with a wear-resisting plate 134 and a clamping plate 135, as shown in fig. 5, one end of the side plate 13 close to the shaft hole 131 is provided with a bending section 133, and main hole rib plates 14 are welded at two main hole positions, which is also a conventional structure of the existing hydraulic hammer side plate 13 and will not be described again.

Example 1

The simple hydraulic hammer shell processing and assembling system comprises a bending mechanism 3, a pressing mechanism 4 and a welding and fixing mechanism 2. Specifically, referring to fig. 6, a press rod 35 is installed at a lower side of the press rod fixing table 32 in the bending mechanism 3, the press rod 35 is a vertically arranged metal plate, an upper press mold 36 with an arc surface is arranged at a bottom end of the press rod 35, the upper press mold 36 is in a long strip shape, and a bottom surface of the upper press mold is an arc surface, preferably an arc surface. The bending platform 34 of the bending mechanism 3 is arranged below the press rod fixing platform 32, two lower pressing dies 37 are fixed on the bending platform 34, the lower pressing dies 37 are columnar and parallel, the two lower pressing dies 37 are symmetrically distributed about the longitudinal middle section of the press rod 35, namely on a horizontal projection plane, the two lower pressing dies 37 are symmetrically distributed on two sides of the upper pressing die 36, the lower pressing dies 37 can support a plate-shaped workpiece, and when the upper pressing die 36 moves downwards, the plate is bent, and the plate can be used for bending the top cover plate 11 and the lining plate 12.

Furthermore, 4 fixed table guide rods 33 are arranged on the bending platform 34, and the pressure bar fixed table 32 is connected with the fixed table guide rods 33 in a sliding manner; the bending cylinder 31 is installed on the support at the top of the fixed table guide rod 33, the piston rod of the bending cylinder 31 is connected with the pressure rod fixing table 32, and the pressure rod fixing table 32 is driven to move up and down along the fixed table guide rod 33 through the bending cylinder 31.

Referring to fig. 7 and 8, the pressing mechanism 4 in this embodiment includes a pressing cylinder 41, an upper bracket 42, and a pressing platform 45, the upper bracket 42 is supported above the pressing platform 45 by a pressing block guide rod 43, the pressing cylinder 41 is vertically fixed on the upper bracket 42, a piston rod of the pressing cylinder 41 is connected to the pressing block 44, and the matching surfaces of the pressing block 44 and the pressing platform 45 are both flat surfaces, and can be matched with a cushion block 46 and a rectangular pressing rod 47 to bend or flatten the side plate 13. The pressing block body 44 can be driven by a cylinder body, when the bending machine is used for bending, a rectangular pressing rod 47 can be placed on the pressing platform 45, then a plate to be processed is placed, and the plate is inclined due to the support of the pressing platform 45; then another rectangular pressure rod 47 is placed at the corresponding bending part on the upper side of the plate, the two rectangular pressure rods 47 are staggered, and when the pressure block body 44 is pressed downwards, the plate can be bent. When the leveling device is used for leveling, the lower side of the side plate 13 is supported by a cushion block 46 with the same height, and the upper convex part can be provided with the cushion block 46 or a rectangular pressure bar 47 for leveling, so that the leveling and the straightening of the side plate 13 are realized. For local deformation, can adopt cushion 46 to correct, for the great protruding deformation of area, can adopt rectangle depression bar 47 to correct.

Referring to fig. 9, the welding and fixing mechanism 2 of the present embodiment mainly includes a box 21 and a baffle 25, which are matched with each other and can be used for welding the outer casing 1. The box 21 in this embodiment is a rectangular structure, and through holes 23 penetrating through the box 21 are formed at two ends of a side wall of the box, and the through holes 23 are horizontally arranged and perpendicular to the length direction of the box 21. The through holes 23 at each end of the box body 21 are two, and the two through holes 23 are arranged up and down and are positioned on the same vertical line. The two ends of the case 21 have the same structure, and there are four through holes 23 on each side of the case 21. Since the through-hole 23 extends through the entire case 21, a positioning shaft can be inserted into the through-hole 23 for carrying the side plate 13. The distance between the two through holes 23 on the same horizontal line is the same as the distance between the first shaft hole 131 and the second shaft hole 132 on the side plate 13. The distance between two through holes 23 on the same vertical line is the same as the distance between two first shaft holes 131 in the upper and lower rows and two second shaft holes 132 in the upper and lower rows.

In the present embodiment, a positioning plate 22 in the vertical direction is disposed between the two through holes 23, and the outer side surface of the positioning plate 22 is a plane and can be used as a reference surface during positioning. The positioning plate 22 can also be arranged at a certain distance from the through hole 23, and no specific requirement is required. Two positioning plates 22 are respectively arranged at two ends of the side wall of the box body 21, so that the same side plate 13 can be positioned by using the two positioning plates 22.

The number of the baffle plates 25 in this embodiment is four, two on each side in the longitudinal direction of the case 21, and the baffle plates are symmetrically arranged along the cross section in the longitudinal direction of the case 21. The two baffles 25 positioned on the same side of the box body 21 are staggered with the through hole 23, namely, the extending lines of the baffles 25 and the through hole 23 do not intersect, so that the baffles 25 and the positioning shaft rod to be installed are prevented from interfering with each other.

It should be noted that in the present embodiment, the distance between the blocking plate 25 and the positioning plate 22 is greater than the thickness of the hydraulic hammer side plate 13, and the distance between the blocking plate 25 and the positioning plate 22 is 1.2 times the thickness of the hydraulic hammer side plate 13, so that the side plate 13 can be easily placed in the gap. If the clearance distance only than curb plate 13 thickness greatly reserve 1 ~ 2mm distance, though insert curb plate 13 that also can be convenient, but after the welding, because the deformation of panel, be difficult for taking out curb plate 13. And this embodiment sets up through great clearance, and when the installation, can earlier put into the clearance with a curb plate 13 in, support by baffle 25, then put into another curb plate 13 at the opposite side, equally by baffle 25 supports, because the distance control in clearance, though the curb plate 13 after putting into the clearance has certain gradient, still can utilize the quick installation of location axostylus axostyle.

Example 2

The plain type hydraulic hammer shell processing equipment system of this embodiment, its improvement point lies in: the center distance between the lower pressing die 37 and the upper pressing die 36 is larger than the sum of the radii of the lower pressing die and the upper pressing die, a certain gap is formed, the width of the gap is 0.6-0.9 times, preferably 0.7 times, the larger bending angle can be realized, and the phenomenon that the local thickness of the plate is changed due to the fact that the plate is extruded by the upper pressing die 36 and the lower pressing die 37 can be avoided. In addition, the radial dimension of the lower die 37 is greater than that of the upper die 36, so that the die 36 has a certain depression depth, which otherwise makes it difficult to achieve bending at a large angle and is prone to interference.

It should be noted that the lower die 37 may be cylindrical, and preferably, the top of the lower die 37 may be flat, that is, the top of the lower die 37 is a flat surface, as shown in fig. 6, so as to prevent the sheet from sliding and facilitate bending.

For the pressing mechanism 4, two pressing cylinders 41 can be used to drive the pressing block 44 to move together. The area of the side plate 13 is large, if only one pressure cylinder 41 is adopted, a certain deviation may exist to cause uneven stress, and the two synchronously driven pressure cylinders 41 can apply larger pressure, and simultaneously, the situation of uneven stress is avoided.

Example 3

The plain type hydraulic hammer shell processing equipment system of this embodiment, its improvement point lies in: the outer side wall of the box body 21 is provided with a collar 24, the inner diameter of the collar 24 is equal to the size of the through hole 23, and the collar is coaxially arranged with the through hole 23. The box 21 can be set to be a hollow structure, the lantern ring 24 can increase the structural strength, after the positioning shaft rod is installed, the main supporting effect can be achieved, and the through hole 23 cannot deform after long-term use. The distance between the baffle plate 25 and the positioning plate 22 in the embodiment is 1.4 times of the thickness of the hydraulic hammer side plate 13.

Example 4

The plain type hydraulic hammer shell processing equipment system of this embodiment, its improvement point lies in: the outer side wall of the box body 21 is provided with a lantern ring 24, the inner diameter of the lantern ring 24 is smaller than the size of the through hole 23, and the lantern ring 24 can be arranged in the through hole 23 and is welded and fixed with the inner wall of the through hole 23. The positioning shaft is directly supported by the collar 24, and the positioning shaft has high structural strength. The distance between the baffle plate 25 and the positioning plate 22 is 1.6 times of the thickness of the hydraulic hammer side plate 13.

Furthermore, four through holes 23 are provided at each end of the box 21, two positioning plates 22 are respectively provided above and below the positioning plates 22, and the positioning plates 22 are located in the area surrounded by the four through holes 23. That is, two through holes 23 are provided in parallel on the upper and lower sides of the same end of the side wall of the case 21, respectively, and the positioning plate 22 is positioned between the upper and lower through holes 23. Due to the fact that the number of the through holes 23 is increased, the through holes at two ends are more in combined use mode, and the welding device is suitable for welding the outer shell 1 with various specifications. In addition, the height of the first axle hole 131 on the side plate 13 from the lower edge of the side plate 13 is less than that of the through hole 23 on the upper side of the box body 1, and after the fixing, the side plate 13 is in a suspended state.

Example 5

The embodiment provides a hydraulic hammer shell assembly method based on bending, leveling and welding technologies, the simple hydraulic hammer shell processing and assembling system is adopted for assembly and processing, and as shown in fig. 13, the specific process is as follows:

step 1, cutting a blank, bending the preliminarily processed top cover plate 11 and the preliminarily processed lining plate 12 by using the bending mechanism 3, trimming the side plate blank, drilling holes and the like after cutting the blank, wherein the trimming is to correct the edge part of the side plate 13, and the drilling is to drill required round holes and polygonal hole grooves on the plate body of the side plate 13, and the description is omitted. During bending, the bending process comprises the following steps:

s1, firstly, carrying out size detection on the plates (the top cover plate 11 and the lining plate 12), and then marking at the designated position;

s2, placing the plate on the lower pressing die 37, and positioning the scribing part corresponding to the lower pressing die 37;

s3, the apparatus is actuated, and the upper die 36 is moved downward to preliminarily press the sheet material, and it is detected whether the upper die 36 is opposed to the scribing portion, for example, the middle section of the upper die 36 is aligned with the scribing portion of the sheet material.

And S4, operating the upper pressing die 36 to press down again to finish the bending processing. In order to facilitate the batch operation, a distance measuring device can be connected to the press bar fixing table 32, and when the press bar fixing table is first machined, the downward movement amount of the upper press die 36 for achieving the specified bending angle is adjusted and detected, and then the bending angle can be judged according to the downward pressing depth.

And 2, bending the cut side plate 13 by using the pressing mechanism 4. When bending operation is carried out, a rectangular pressure rod 47 is placed on the pressing platform 45, then a plate to be processed is placed, and the plate is inclined due to the support of the pressing platform 45; then another rectangular pressure rod 47 is placed at the corresponding bending part on the upper side of the plate, the two rectangular pressure rods 47 are staggered, and when the pressure block body 44 is pressed downwards, the plate can be bent.

Step 3, welding the side plate 13, and welding the clamping plate 135, the wear-resisting plate 134 and the main hole rib plate 14; after welding, the side plates 13 are leveled and corrected by the pressing mechanism 4.

The clamping plate 135 is a welded member located in the end width direction, and is less likely to be deformed by the thickness of the plate material itself when welding. The wear-resistant plate 134 is arranged along the length direction of the side plate 13, the size of the side plate 13 in the length direction is large, when the wear-resistant plate 134 is welded, deformation of the side plate 13 is easily caused, and under the condition that the periphery and the middle of the side plate are not fixed, the deformation cannot be avoided, so that after welding, the deformed side plate needs to be leveled. During the correction, the side plate 13 can be supported by a pad 46 with the same height on the pressing platform 45, the pad 46 or the rectangular pressure bar 47 can be placed on the upper convex part, and the pad 46 or the rectangular pressure bar 47 is pressed down by the pressing block body 44 to perform the pressing, so that the flat correction of the side plate 13 can be realized. For local deformation, can adopt cushion 46 to correct, for the great protruding deformation of area, can adopt rectangle depression bar 47 to correct.

And 4, welding by using the welding and fixing mechanism 2: the side plate 13 processed in step 2 is first placed in the gap between the box body 21 and the baffle 25 of the welding and fixing mechanism 2, the first shaft hole 131 and the second shaft hole 132 of the side plate 13 are adjusted to be aligned with the through hole 23, and the positioning shaft rod is installed.

The first shaft hole 131 and the second shaft hole 132 of the side plate 13 are divided into an upper row and a lower row, positioning shaft rods are inserted into the two rows of shaft holes, four positioning shaft rods are arranged, and the positioning shaft rods are in clearance fit with the first shaft hole 131 and the second shaft hole 132, so that the side plate 13 is positioned in a suspended mode and cannot move in a vertical plane.

And 5, adjusting the distance between the two side plates 13, and connecting the two side plates 13 by utilizing a fixed rod for welding and positioning.

As shown in fig. 8 and 9, there are 5 fixing rods, 2 of which are welded in parallel to the holding plate 135 and the second fixing rod 152 is welded to the top arc-shaped protrusion of the side plate 13; the third fixing rod 153 is welded on the middle arc-shaped projection; the fourth fixing rod 154 is welded at the bottom bend. In the welding process, the first fixing rod 151 on the lower side is welded, the third fixing rod 153 is welded, and the fourth fixing rod 154, the first fixing rod 151 on the upper side, and the second fixing rod 152 are welded in sequence. According to the structural characteristics of the side plate 13, the width of the end of the side plate 13 where the main hole rib 14 is installed is larger than that of the other end, and a bent section 133 is arranged between the end of the side plate and the end, where the main hole rib 14 is installed, so that the width of the end is larger. When the box body 21 is used for positioning, the narrow section is mainly positioned, so that one end of the side plate 13, which is provided with the main hole rib plate 14, is opposite to the other end, the middle part is not supported, and the positioning strength is relatively poor. If one end of the main hole rib plate 14 is welded first when the fixing rod is welded, the side plate 13 may have a tendency to bend inward due to lack of middle support, and there is a certain influence on the other end. And weld first dead lever 151 of downside in this scheme earlier, owing to supported by box 21, deformation is less, welds third dead lever 153 after the welding again, then reduces the influence to deformation.

And 6, welding the lining plate 12, then welding the top cover plate 11, taking down the positioning shaft rod after welding, hanging out the outer shell 1, and then welding the top cover plate 11 and the lining plate 12 from the inner side to complete welding assembly processing. Because the lining plate 12 is arranged on the inner side, the operation of welding the lining plate 12 is more convenient, and the lining plate 12 can also play a role in supporting the side plate 13 after being welded.

When the top cover plate 11 is welded, spot welding is firstly carried out for positioning, then the welding is carried out from the middle bent part to the end part on one side, the welding is carried out from the middle part to the end part on the other side, then the welding is carried out according to the opposite welding sequence and the opposite welding direction, namely the welding is carried out according to the steps of ① → ② → ③ → ④ in the figure 12.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims

1. The utility model provides a plain type hydraulic hammer shell processing equipment system which characterized in that: comprises that

The bending mechanism (3), a pressure lever (35) is installed on the lower side of a pressure lever fixing table (32) of the bending mechanism (3), an upper pressing die (36) with a cambered surface is arranged at the bottom end of the pressure lever (35), two lower pressing dies (37) are fixed on a bending platform (34) of the bending mechanism (3), the lower pressing dies (37) are columnar, and the two lower pressing dies (37) are symmetrically distributed about the longitudinal middle section of the pressure lever (35) and are used for bending the top cover plate (11) and the lining plate (12);

the pressing mechanism (4), the matching surfaces of a pressing block body (44) and a pressing platform (45) in the pressing mechanism (4) are both planes, and a cushion block (46) and/or a rectangular pressing rod (47) are/is placed on the pressing platform (45) and used for bending and leveling the side plate (13);

the welding and fixing mechanism (2) comprises a box body (21) and a baffle plate (25), the box body (21) is of a rectangular structure, through holes (23) penetrating through the box body (21) are formed in two ends of the side wall of the box body, two through holes (23) are formed in each end of the box body (21), and positioning plates (22) are arranged at two ends of the side wall; the baffles (25) are symmetrically arranged along the middle section of the length direction of the box body (21), and the two baffles (25) on each side of the box body (21) are staggered with the through hole (23); the distance between the baffle plate (25) and the positioning plate (22) is greater than the thickness of the hydraulic hammer side plate (13); the welding and fixing mechanism (2) is used for fixing a side plate (13), and assisting the welding of a top cover plate (11) and a lining plate (12);

a sleeve ring (24) is arranged on the outer side wall of the box body (21), the inner diameter of the sleeve ring (24) is not larger than the size of the through hole (23), and the sleeve ring and the through hole (23) are coaxially arranged; the box body (21) is characterized in that four through holes (23) are formed in each end of the box body (21), two positioning plates (22) are arranged above and below the box body, and the positioning plates (22) are located in the area surrounded by the four through holes (23).

2. The simplified hydraulic hammer housing machining and assembling system of claim 1, wherein: 4 fixing table guide rods (33) are arranged on the bending platform (34), and the pressure bar fixing table (32) is connected with the fixing table guide rods (33) in a sliding manner; a bending cylinder body (31) is installed on a support at the top of the fixed table guide rod (33), and the pressing rod fixed table (32) is driven to move up and down along the fixed table guide rod (33) through the bending cylinder body (31).

3. The simplified hydraulic hammer housing machining and assembling system of claim 2, wherein: the center distance between the lower pressing die (37) and the upper pressing die (36) is larger than the sum of the radii of the lower pressing die and the upper pressing die, the gap width is 0.6-0.9 times of the radius of the upper pressing die (36), and the radial dimension of the lower pressing die (37) is larger than that of the upper pressing die (36).

4. The simplified hydraulic hammer housing machining and assembling system of claim 1, wherein: an upper support (42) arranged in the pressing mechanism (4) is supported above a pressing platform (45) through a pressing block guide rod (43), a pressing cylinder body (41) is fixed on the upper support (42), a piston rod of the pressing cylinder body (41) is connected with a pressing block body (44), the lower surface of the pressing block body (44) is a plane, and a cushion block (46) and a rectangular pressing rod (47) can be matched to bend or flatten the side plate (13).

5. The simplified hydraulic hammer housing machining and assembling system of claim 4, wherein: the two pressing cylinder bodies (41) are used for driving the pressing block body (44) to move together.

6. The simplified hydraulic hammer housing machining and assembling system according to any one of claims 1 to 5, wherein: the distance between the baffle (25) and the positioning plate (22) is 1.2-1.5 times of the thickness of the hydraulic hammer side plate (13).

7. The simplified hydraulic hammer housing machining and assembling system according to any one of claims 1 to 5, wherein: the height of the first shaft hole (131) on the side plate (13) from the lower edge of the side plate (13) is smaller than that of the through hole (23) on the upper side of the box body (1), and after the side plate (13) is fixed, the side plate is in a suspended state.