Honing positioning conversion tray

Abstract

The utility model provides a honing positioning conversion tray, which relates to the technical field of tool clamps for machining engine parts, is detachably arranged on a movable workbench, is used for loading an air cylinder, and comprises a base which is arranged on the movable workbench; at least two limiting blocks are arranged on the base, and the multiple limiting blocks are arranged at intervals and abut against the multiple side walls of the air cylinder correspondingly; a plurality of mounting holes are further formed in the base, positioning pins are connected to the mounting holes, and the positioning pins are embedded into a plurality of pin holes formed in the bottom of the air cylinder respectively; the positioning pin is telescopically arranged in the mounting hole; the problems that due to the fact that air cylinders are numerous in model, a large amount of time needs to be consumed to adjust the clamping positions of the air cylinders when the air cylinders are fixed to a workbench of a honing tool through a traditional clamp, and the utilization rate of honing equipment is very low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures for machining engine parts, in particular to a honing positioning conversion tray. Background Art

[0002] The cylinder is one of the important components of an internal combustion engine. It forms a combustion chamber with the piston, cylinder head and other components. The fuel burns in the combustion chamber to form high-temperature and high-pressure gas, which pushes the piston to reciprocate and drives the crankshaft to rotate through the connecting rod. The processing quality of the cylinder hole is directly related to the performance of the internal combustion engine. Therefore, modern engine cylinder hole processing all adopts the honing process, and its honing equipment is special. The main functional components of the honing machine are: spindle: reciprocating and rotating up and down, driving the honing head to grind the cylinder hole; pressure plate: moves up and down, and is equipped with a guide sleeve, which has the guiding function of the honing head; worktable: drives the workpiece to move left and right to realize multi-station processing.

[0003] The honing process has the characteristics of large equipment investment, small processing allowance and fast honing speed. For the processing of small and medium-sized batches of cylinder bodies, the equipment utilization rate is often low. Therefore, in production practice, in order to improve equipment utilization rate, multiple varieties of products are often used to share a honing machine, and co-production is carried out by adjusting the fixture. However, due to differences in product structure, positioning size, cylinder center distance, etc., the fixture and pressure plate stroke must be adjusted when switching products. It takes up to 2-3 days to adjust the fixture and polish multiple cylinder bodies of the same cylinder, resulting in very low equipment utilization rate. Utility Model Content

[0004] The purpose of the utility model is to provide a honing positioning conversion pallet, which solves the problems of numerous cylinder models, fixing the cylinder on the workbench of the honing tool by traditional clamps, taking a lot of time to adjust the clamping position of the cylinder, resulting in low utilization rate of the honing equipment, and the like.

[0005] The utility model is realized by the following technical solutions: a honing positioning conversion tray is detachably arranged on a movable workbench and used for loading a cylinder, comprising a base, and the base is arranged on the movable workbench;

[0006] At least two limit blocks are provided on the base, and the limit blocks are spaced apart and respectively abut against the side walls of the cylinder;

[0007] The base is also provided with a plurality of mounting holes, and the mounting holes are connected with positioning pins, and the positioning pins are respectively engaged with a plurality of pin holes provided at the bottom of the cylinder.

[0008] Furthermore, the positioning pin is telescopically arranged in the mounting hole.

[0009] Furthermore, it further comprises a pin rod, the positioning pin is arranged at the upper end of the pin rod, and a locking block is arranged on the pin rod;

[0010] A slide groove is vertically provided on the inner wall of the mounting hole, and a plurality of lock holes are spaced apart on the side wall of the slide groove. The pin rod is loosely matched with the mounting hole, and the locking block is slidably placed in the slide groove. The locking block is moved in and out of the lock hole by rotating the pin rod.

[0011] Furthermore, the positioning pin is threadedly engaged with the mounting hole.

[0012] Furthermore, the positioning pin is a diamond pin.

[0013] Furthermore, a pad is provided on the top of the positioning pin.

[0014] Furthermore, the movable workbench is provided with a plurality of round pins, the base is provided with a plurality of tray positioning holes, and a plurality of the round pins are respectively engaged with a plurality of the tray positioning holes.

[0015] The technical solution of the utility model has at least the following advantages and beneficial effects:

[0016] 1. When placing the cylinder on the base, you only need to make the side walls of the cylinder abut against multiple limit blocks at the same time, and then place it vertically on the base to place the cylinder at the predetermined position on the base. After the cylinder abuts against the limit blocks and is lowered vertically, several positioning pins and several pin holes are docked and engaged, thereby realizing rapid positioning of the cylinder and the honing head.

[0017] 2. According to different types of cylinders, locating pins can be set in different mounting holes of the base, and then engaged with the pin holes at the bottom of different types of cylinders. It is only necessary to set locating pins at the corresponding mounting holes according to the cylinder model to quickly connect the cylinder and the base, which greatly improves the clamping efficiency and quality of the cylinder and greatly reduces the time for aligning the honing head with the cylinder holes of different cylinders.

[0018] 3. The positioning pin is retractably set in the mounting hole. By adjusting the amount of the positioning pin extending out of the mounting hole, the support height of the cylinder can be controlled, thereby compensating for the height of some smaller cylinders. By raising the cylinder, the cylinder can be quickly matched with the honing head later, thereby quickly realizing the grinding of the cylinder hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the structure of a honing positioning conversion tray and a movable workbench provided by the utility model;

[0021] Figure 2 A schematic diagram of the three-dimensional structure of a honing positioning conversion tray provided by the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the cooperation between the positioning pin and the mounting hole in the honing positioning conversion tray provided by the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the mounting hole, slide groove, lock hole, pin rod and lock block in a honing positioning conversion tray provided by the utility model;

[0024] Icons: 1. Mobile workbench, 11. Round pin, 2. Cylinder, 21. Pin hole, 3. Base, 31. Mounting hole, 32. Slide groove, 33. Lock hole, 34. Pallet positioning hole, 4. Limit block, 5. Locating pin, 51. Pin rod, 52. Lock block, 53. Pad, 6. Pressure plate. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0027] Example 1:

[0028] Reference Figures 1 to 4As shown, this embodiment provides a honing positioning conversion pallet, which is detachably arranged on the mobile workbench 1 and is used for quickly loading the cylinder 2. The mobile workbench 1 drives the cylinder 2 to move horizontally, and then cooperates with the pressure plate and the honing head to realize the grinding of the cylinder hole; the pallet mainly includes a base 3, and the base 3 is detachably arranged on the mobile workbench 1; in specific implementation, a plurality of round pins 11 are provided on the mobile workbench 1, and a plurality of pallet positioning holes 34 are provided on the base 3. Several round pins 11 are respectively engaged with several pallet positioning holes 34. When replacing the base 3, it is only necessary to dock the corresponding pallet positioning holes 34 on the base 3 with the corresponding round pins 11 to quickly connect the base 3 to the mobile workbench 1.

[0029] More specifically, Figure 1 and 2 As shown, at least two limit blocks 4 are provided on the base 3, and the multiple limit blocks 4 are arranged at intervals and respectively abut against multiple side walls of the cylinder 2; usually two are sufficient, and when the cylinder 2 is placed on the base 3, it is only necessary to make the side walls of the cylinder 2 abut against multiple limit blocks 4 at the same time, and then place it vertically on the base 3, so that the cylinder 2 can be placed in the predetermined position on the base 3, thereby realizing rapid positioning of the cylinder 2 and the honing head.

[0030] At the same time, if Figure 1-4 As shown, a plurality of mounting holes 31 are also provided on the base 3, and locating pins 5 are connected to the mounting holes 31. The plurality of locating pins 5 are respectively engaged with the plurality of pin holes 21 provided at the bottom of the cylinder 2. In specific implementation, the locating pins 5 are rhombus pins, which are also called diamond pins. It is a relatively special pin connection method. Its characteristics are that its shape and the pin holes 21 at the bottom of the cylinder 2 are both rhombus-shaped. This connection method is relatively strong and can withstand greater tension. The structure of the diamond pin is more complex. It is usually a steel column with a diamond-shaped protrusion. The main function of the diamond pin is to position the workpiece in the correct position of the fixture to ensure processing accuracy. When the cylinder 2 is in contact with the limit block 4 and is lowered vertically, the plurality of locating pins 5 are docked and engaged with the plurality of pin holes 21.

[0031] More specifically, Figure 2 As shown, according to different models of cylinders 2, locating pins 5 can be set in different mounting holes 31 of the base 3, and then engaged with the pin holes 21 at the bottom of different models of cylinders 2. It is only necessary to set the locating pins 5 at the corresponding mounting holes 31 according to the model of cylinder 2 to quickly connect the cylinder 2 and the base 3, which greatly improves the clamping efficiency and quality of the cylinder 2 and greatly reduces the time for aligning the honing head with the cylinder holes of different cylinders 2.

[0032] More specifically, Figure 2 and 3As shown, a pad 53 is provided on the top of the locating pin 5. The hardness of the pad 53 is smaller than that of the cylinder 2 and the locating pin 5. It is mainly used to prevent the locating pin 5 from generating friction with the cylinder 2 and the pin hole 21 when the cylinder 2 is placed on the base 3, and it also has the effect of shock absorption and noise reduction.

[0033] When implementing it specifically, Figure 2-Figure 4 As shown, the positioning pin 5 is telescopically arranged in the mounting hole 31. By adjusting the amount that the positioning pin 5 extends out of the mounting hole 31, the support height of the cylinder 2 is controlled, thereby compensating for the height of a part of the smaller cylinder 2. By raising the cylinder 2, the cylinder 2 can be quickly matched with the honing head later, thereby quickly realizing the grinding of the cylinder hole.

[0034] It also includes a pin rod 51, a positioning pin 5 is arranged at the upper end of the pin rod 51, and a locking block 52 is arranged on the pin rod 51; a slide groove 32 is vertically arranged on the inner wall of the mounting hole 31, and a plurality of locking holes 33 are arranged at intervals on the side wall of the slide groove 32. The pin rod 51 is clearance-matched with the mounting hole 31, and the locking block 52 is slidably placed in the slide groove 32. The locking block 52 is moved in and out of the locking hole 33 by rotating the pin rod 51.

[0035] like Figure 2-Figure 4 As shown, in a specific implementation, two locking blocks 52 can be symmetrically provided on the pin rod 51, and then there are two groups of corresponding slide grooves 32. The two locking blocks 52 can make the pin rod 51 bear the force more evenly, and thus be coaxial with the mounting hole 31; when adjusting the support height of the positioning pin 5, the locking block 52 can be rotated to enter the slide groove 32, so that the pin rod 51 can be moved axially along the mounting hole 31. According to the need for the support height of different models of cylinder 2, the height position of the locking hole 33 in the slide groove 32 can be pre-set, and then according to the model of cylinder 2, After driving the locking block 52 to the locking hole 33 at the height, rotate the pin rod 51 to make the locking block 52 enter the corresponding locking hole 33, and the positioning pin 5 can be set to the corresponding support height. After the positioning pins 5 at other positions are subsequently set to the corresponding height according to this step, the cylinder 2 can be lowered close to the limit block 4 so that the adjusted positioning pin 5 and the pin hole 21 are docked and engaged. This not only controls the height of the cylinder 2, but also allows cylinders 2 of different models to be quickly set at corresponding positions on the base 3, greatly improving the clamping efficiency of the cylinder 2.

[0036] Example 2:

[0037] As another embodiment, the locating pin 5 is threadedly matched with the mounting hole 31. By rotating the locating pin 5, the locating pin 5 can be extended and retracted in the mounting hole 31, thereby achieving support and positioning of different cylinder bodies at different heights. However, when adjusting by rotation, a steel ruler is required to assist in measuring the height of the locating pin 5, which is not as efficient as the first embodiment. However, the height can be controlled at will, and some fine-tuning can be performed, which is suitable for positioning of cylinders 2 of completely new sizes.

[0038] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A honing positioning conversion tray, detachably arranged on a movable workbench (1) for loading a cylinder (2), characterized in that: It comprises a base (3), wherein the base (3) is arranged on the movable workbench (1); At least two limit blocks (4) are provided on the base (3), and the plurality of limit blocks (4) are arranged at intervals and respectively abut against the plurality of side walls of the cylinder (2); The base (3) is also provided with a plurality of mounting holes (31), and the mounting holes (31) are connected with positioning pins (5), and the positioning pins (5) are respectively engaged with a plurality of pin holes (21) provided at the bottom of the cylinder (2).

2. The honing positioning conversion tray according to claim 1, characterized in that: The positioning pin (5) is telescopically arranged in the mounting hole (31).

3. The honing positioning conversion tray according to claim 2, characterized in that: It also includes a pin rod (51), the positioning pin (5) is arranged at the upper end of the pin rod (51), and a locking block (52) is arranged on the pin rod (51); A slide groove (32) is vertically provided on the inner wall of the mounting hole (31), and a plurality of locking holes (33) are spaced apart on the side wall of the slide groove (32). The pin rod (51) is clearance-matched with the mounting hole (31), and the locking block (52) is slidably placed in the slide groove (32). The locking block (52) is moved in and out of the locking hole (33) by rotating the pin rod (51).

4. The honing positioning conversion tray according to claim 2, characterized in that: The positioning pin (5) is threadably engaged with the mounting hole (31).

5. A honing positioning conversion tray according to any one of claims 3 or 4, characterized in that: The positioning pin (5) is a diamond pin.

6. The honing positioning conversion tray according to claim 5, characterized in that: A cushion block (53) is provided on the top of the positioning pin (5).

7. The honing positioning conversion tray according to claim 6, characterized in that: The movable workbench (1) is provided with a plurality of round pins (11), the base (3) is provided with a plurality of tray positioning holes (34), and a plurality of the round pins (11) are respectively engaged with a plurality of the tray positioning holes (34).

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