Fixture for machining high-horsepower engine cylinder body

Abstract

The utility model discloses a fixture for processing a high-horsepower engine cylinder body, which comprises a base, and front bearing seats, namely a left front bearing seat and a right front bearing seat, are symmetrically arranged at the left end and the right end of the base; a rear bearing seat is arranged in the middle of the rear side of the front bearing seat; the rear bearing seat, the left front bearing seat and the right front bearing seat are arranged in an isosceles triangle structure and are connected through a connecting rod; moving parts are arranged between the front bearing seat and the base and between the rear bearing seat and the base; main adjusting supports are arranged at the tops of the front bearing seat and the rear bearing seat; bearing seat adjusting devices are arranged in the circumferential direction of the front bearing seat. The connecting rod is arranged, the left front bearing seat, the right front bearing seat and the rear bearing seat which are mutually independent are connected, only the positions of one or two of the left front bearing seat, the right front bearing seat and the rear bearing seat need to be adjusted, the other bearing seats can be adjusted along, repeated adjustment is not needed, time and labor are saved, and linkage and adjustment accuracy of the three bearing seats are high.

Description

Technical Field

[0001] This utility model relates to the field of accessories for machining engine cylinder blocks, and in particular to a fixture for machining high-horsepower engine cylinder blocks. Background Technology

[0002] High-horsepower engine blocks are relatively large, typically with a length between 1600 and 2700 mm (reference). Figure 1 and Figure 2 (Front view and side view of high-horsepower engine cylinder block) To ensure uniform machining allowance, before machining (drilling, milling, etc.), machining allowance lines need to be marked on the cylinder block using a scribing machine. During machining, the cylinder block position is adjusted according to the machining allowance lines, and then the machining program is modified according to the scribing position. Manually modifying the machining program can lead to errors. If the machining program is not modified, then the position of the machining allowance line on the cylinder block must be consistent with the position of the X, Y, and Z axes on the worktable. Since the cylinder block is relatively large, it is inconvenient to move and adjust its position. Therefore, the high-horsepower engine cylinder block is usually placed on a base or support, and the position of the high-horsepower engine cylinder block is adjusted using multiple adjustment devices on the base. However, the existing adjustment devices are independent of each other. After adjusting one, the other is adjusted, and so on, which is time-consuming, labor-intensive, and not very accurate. Utility Model Content

[0003] The purpose of this invention is to provide a fixture for machining high-horsepower engine cylinder blocks.

[0004] The innovation of this utility model is that: this application sets up a connecting rod to connect the independent left front bearing seat, right front bearing seat and rear bearing seat. Only one or two of them need to be adjusted, and the rest will be adjusted accordingly. There is no need for repeated adjustments, which saves time and effort. Moreover, the three are linked together, and the adjustment accuracy is high.

[0005] To achieve the aforementioned objectives, the technical solution of this utility model is as follows:

[0006] A fixture for machining a high-horsepower engine cylinder block includes a base. A front bearing housing is symmetrically arranged at the left and right ends of the base, designated as a left front bearing housing and a right front bearing housing, respectively. A rear bearing housing is located at the center of the rear side of each front bearing housing. The rear bearing housing, the left front bearing housing, and the right front bearing housing are arranged in an isosceles triangle structure and connected by a connecting rod. Moving parts are provided between both the front and rear bearing housings and the base. A main adjusting support is provided at the top of both the front and rear bearing housings. Bearing housing adjusting devices are provided circumferentially on both front bearing housings. Floating supports and clamping assemblies are symmetrically arranged on the left and right rear sides of the rear bearing housing.

[0007] Furthermore, the front bearing housing and the rear bearing housing are also provided with guide protection components in the circumferential direction, including a fixing sleeve provided on the base and a guide protection plate provided on the top of the fixing sleeve. The free end of the guide protection plate is inserted into the side wall of the front bearing housing / rear bearing housing and a gap is left between the free end of the guide protection plate and the front bearing housing / rear bearing housing.

[0008] Furthermore, the bearing housing adjustment device includes an adjustment seat mounted on the base and an adjustment screw mounted on the top of the adjustment seat. One end of the adjustment screw is provided with an adjustment handle, and the other end is provided with an adjustment block. The adjustment block abuts against the side wall of the front bearing housing.

[0009] Furthermore, the clamping assembly includes a guide post disposed on the base, a pressure plate sleeved on the top of the guide post, and a clamping nut disposed between the guide post and the pressure plate.

[0010] Furthermore, the base is also provided with several auxiliary adjustment supports.

[0011] Furthermore, a V-shaped support block is also provided on the main adjusting support at the top of the rear bearing housing.

[0012] Furthermore, the pressure plate includes a straight pressure plate or a hook-shaped pressure plate.

[0013] The beneficial effects of this utility model are:

[0014] First: This application uses the front bearing housing, the rear bearing housing, and the moving parts to adjust the X-axis and Y-axis positions of the high-horsepower engine cylinder block, and uses the main adjustment support and the auxiliary adjustment support to adjust the Z-axis position of the high-horsepower engine cylinder block. In addition, since the high-horsepower engine cylinder block is large in size, in order to facilitate adjustment, this application sets a connecting rod to connect the independent left front bearing housing, right front bearing housing, and rear bearing housing. Only one or two of the positions need to be adjusted, and the rest will be adjusted accordingly. There is no need for repeated adjustments, which saves time and effort. Moreover, the three are linked together, and the adjustment accuracy is high.

[0015] Second: This application provides a guide protection device in the circumferential direction of the front bearing housing and the rear bearing housing. On the one hand, it can prevent metal chips from falling into the gap between the front bearing housing / rear bearing housing and the moving parts during finishing, thus affecting the movement of the front bearing housing / rear bearing housing. On the other hand, it can also play a guiding and limiting role when the front bearing housing / rear bearing housing moves. Attached Figure Description

[0016] Figure 1 This is a front view of the cylinder block of a high-horsepower engine.

[0017] Figure 2 This is a side view of the cylinder block of a high-horsepower engine.

[0018] Figure 3 This is a front view of the present invention.

[0019] Figure 4 This is a side view of the present invention.

[0020] Figure 5 This is a top view of the present invention.

[0021] Figure 6 This is a schematic diagram showing the connection of the connecting rod to the rear bearing housing, the left front bearing housing, and the right front bearing housing.

[0022] Figure 7 Front view of a high-horsepower engine cylinder block fixed to this utility model.

[0023] Figure 8 A side view of a high-horsepower engine cylinder block fixed to this utility model.

[0024] In the diagram: 100 is the high-horsepower engine block, 200 is the base, 210 is the front bearing housing, 211 is the left front bearing housing, 212 is the right front bearing housing, 220 is the rear bearing housing, 230 is the connecting rod, 240 is the moving part, 250 is the main adjusting support, 251 is the auxiliary adjusting support, 252 is the V-shaped support block, 260 is the bearing housing adjusting device, 261 is the adjusting seat, 262 is the adjusting screw, 263 is the adjusting handle, 264 is the adjusting block, 270 is the floating support, 280 is the clamping assembly, 281 is the guide column, 282 is the pressure plate, 283 is the clamping nut, 290 is the guide protection assembly, 291 is the fixing sleeve, and 292 is the guide protection plate. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model will now be clearly and completely described with reference to the accompanying drawings.

[0026] A jig for machining a high-horsepower engine cylinder block includes a base 200. Front bearing seats 210, designated as a left front bearing seat 211 and a right front bearing seat 212, are symmetrically arranged at the left and right ends of the base 200. A rear bearing seat 220 is located at the center of the rear side of the front bearing seats 210. The rear bearing seat 220, the left front bearing seat 211, and the right front bearing seat 212 form an isosceles triangle structure and are connected by a connecting rod 230. Moving parts 240 are provided between the front bearing seats 210 and the rear bearing seat 220 and the base. Main adjusting supports 250 are provided at the top of both the front bearing seats 210 and the rear bearing seat 220. Bearing seat adjusting devices 260 are provided circumferentially around the front bearing seat 210. Floating supports 270 and clamping assemblies 280 are symmetrically arranged on the left and right sides of the rear side of the rear bearing seat 220.

[0027] Furthermore, the moving part 240 may be a thrust ball bearing, which can be purchased directly from the market, or it may be a part similar to a thrust ball bearing.

[0028] Furthermore, the front bearing housing 210 and the rear bearing housing 220 are also provided with a guide protection assembly 290 in the circumferential direction, including a fixing sleeve 291 disposed on the base 200 and a guide protection plate 292 disposed on the top of the fixing sleeve 291. The free end of the guide protection plate 292 is inserted into the side wall of the front bearing housing / rear bearing housing 210, 220 and a gap is left between the free end of the guide protection plate 292 and the front bearing housing / rear bearing housing 210, 220.

[0029] Furthermore, the guiding and protective component 290 serves two purposes: firstly, it prevents iron filings from falling between the front bearing housing / rear bearing housing 210, 220 and the moving component 240 during processing, thus affecting the movement of the front bearing housing / rear bearing housing 210, 220; secondly, it acts as a guide and limiter when the front bearing housing / rear bearing housing 210, 220 moves.

[0030] Furthermore, the bearing housing adjustment device 260 includes an adjustment seat 261 disposed on the base 200 and an adjustment screw 262 disposed on the top of the adjustment seat 261. One end of the adjustment screw 262 is provided with an adjustment handle 263, and the other end is provided with an adjustment block 264. The adjustment block 264 abuts against the side wall of the front bearing housing 210.

[0031] Furthermore, the bearing housing adjustment device 260 is mainly used to adjust the X-axis and Y-axis positions of the front bearing housing 210, that is, to adjust the X-axis and Y-axis positions of the high-horsepower engine block 100; the bearing housing adjustment device 260 can be arranged in a cross shape, such as... Figure 5 The bearing housing adjustment devices 260 arranged in a cross shape are arranged around the circumferentially of the left front bearing housing 211. Since the rear bearing housing is connected to the left front bearing housing and the right front bearing housing by the connecting rod 230, when one of them is moved, the other two can move together; the adjustment is convenient.

[0032] Furthermore, the clamping assembly 280 includes a guide post 281 disposed on the base 200, a pressure plate 282 sleeved on the top of the guide post 281, and a clamping nut 283 disposed between the guide post 281 and the pressure plate 282.

[0033] Furthermore, the base 200 is also provided with several auxiliary adjustment supports 251.

[0034] Furthermore, a V-shaped support block 252 is also provided on the main adjusting support 250 at the top of the rear bearing housing 220.

[0035] Furthermore, both the main adjusting support 250 and the auxiliary adjusting support 251 are existing technologies and can be purchased directly from the market. The function of the main adjusting support 250 and the auxiliary adjusting support 251 is to adjust the Z-axis position of the high-horsepower engine cylinder block 100.

[0036] Furthermore, the pressure plate 282 includes a straight pressure plate or a hook-shaped pressure plate.

[0037] The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A fixture for machining a high-horsepower engine cylinder block, comprising a base (200), characterized in that: The base (200) is symmetrically provided with front bearing seats (210) at its left and right ends, namely the left front bearing seat (211) and the right front bearing seat (212). A rear bearing housing (220) is provided at the middle of the rear side of the front bearing housing (210). The rear bearing housing (220), the left front bearing housing (211), and the right front bearing housing (212) are arranged in an isosceles triangle structure and are connected by a connecting rod (230). Both the front bearing housing (210) and the rear bearing housing (220) are provided with moving parts (240) between themselves and the base. The front bearing housing (210) and the rear bearing housing (220) are both provided with main adjustment supports (250) on their tops; The front bearing housing (210) is provided with bearing housing adjustment devices (260) in all directions. The rear bearing housing (220) is also symmetrically provided with floating supports (270) and clamping components (280) on the left and right sides of the rear side.

2. The fixture for machining a high-horsepower engine cylinder block according to claim 1, characterized in that: The front bearing housing (210) and the rear bearing housing (220) are also provided with a guide protection assembly (290) in the circumferential direction, including a fixing sleeve (291) provided on the base (200) and a guide protection plate (292) provided on the top of the fixing sleeve (291). The free end of the guide protection plate (292) is inserted into the side wall of the front bearing housing / rear bearing housing (210, 220) and a gap is left between the free end of the guide protection plate (292) and the front bearing housing / rear bearing housing (210, 220).

3. The fixture for machining a high-horsepower engine cylinder block according to claim 1, characterized in that: The bearing housing adjustment device (260) includes an adjustment seat (261) on the base (200) and an adjustment screw (262) on the top of the adjustment seat (261). One end of the adjustment screw (262) is provided with an adjustment handle (263), and the other end is provided with an adjustment block (264). The adjustment block (264) abuts against the side wall of the front bearing housing (210).

4. The fixture for machining a high-horsepower engine cylinder block according to claim 1, characterized in that: The clamping assembly (280) includes a guide post (281) disposed on the base (200) and a pressure plate (282) sleeved on the top of the guide post (281), and a clamping nut (283) is disposed between the guide post (281) and the pressure plate (282).

5. The fixture for machining a high-horsepower engine cylinder block according to claim 1, characterized in that: The base (200) is also provided with several auxiliary adjustment supports (251).

6. The fixture for machining a high-horsepower engine cylinder block according to claim 1, characterized in that: A V-shaped support block (252) is also provided on the main adjusting support (250) at the top of the rear bearing housing (220).

7. A fixture for machining a high-horsepower engine cylinder block according to claim 4, characterized in that: The pressure plate (282) includes a straight pressure plate or a hook-shaped pressure plate.

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