Machining clamp for compressor cylinder body assembly

Abstract

The utility model discloses a machining clamp for a compressor cylinder body assembly. According to the technical scheme, the device comprises an air cylinder support, a tensioning mechanism and a supporting seat, the tensioning mechanism and the supporting seat are arranged on the air cylinder support, a cylinder body positioning seat is arranged on the supporting seat, a plurality of cylinder body positioning rods which are distributed circumferentially are arranged on the cylinder body positioning seat, a plurality of movable holes which are obliquely formed are formed in the cylinder body positioning rods, and the tensioning mechanism comprises a tensioning air cylinder and a clamping mechanism. The cylinder is fixed on the cylinder support and positioned on the lower side of the supporting seat; the air cylinder pull rod is connected with the tensioning air cylinder and is vertically arranged on the supporting seat; the transition disc is fixedly connected with the cylinder pull rod and located on the upper side of the supporting seat; the tensioning rods are all connected with the transition disc, correspond to the movable holes one by one in position and can move in the movable holes, the clamping and putting-down speed can be high, the position is stable during clamping, the position precision requirement during preliminary placement is low, the production efficiency is improved, and the product percent of pass is increased.

Description

Technical Field

[0001] The utility model relates to the field of workpiece clamping devices, and more specifically to a machining fixture for compressor cylinder assembly. Background Art

[0002] At present, when processing the front and rear cylinder mounting ears, suction and exhaust holes of the automobile air-conditioning compressor housing, the operator generally manually places the single housing (front cylinder or rear cylinder) on the CNC indexing plate (fourth axis rotary table) and uses screws and pressure plates to press the workpiece. Due to manual operation, the labor intensity of workers is increased and production efficiency is reduced. At the same time, it is difficult to ensure the parallelism of the front and rear cylinder processing mounting ears and suction and exhaust holes, and the consistency is poor; thus, it cannot be sealed when assembling the suction and exhaust pressure plate, which is easy to leak and difficult to install when installing the compressor on the whole vehicle. The product rework rate or scrap rate is very high, which easily leads to the decline of the quality of the automobile air-conditioning compressor. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a clamp for machining a compressor cylinder assembly to solve the above technical problems.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a processing fixture for a compressor cylinder assembly, comprising: a cylinder support, a tensioning mechanism and a support seat arranged on the cylinder support, the support seat is provided with a cylinder positioning seat, the cylinder positioning seat is provided with a plurality of circumferentially distributed cylinder positioning rods, the cylinder positioning rods are provided with a plurality of inclined movable holes, and the tensioning mechanism comprises:

[0005] The tensioning cylinder is fixed on the cylinder support and is located on the lower side of the support base;

[0006] The cylinder pull rod is connected to the tensioning cylinder and is vertically arranged on the support seat;

[0007] The transition plate is fixedly connected to the cylinder rod and is located on the upper side of the support seat;

[0008] There are several tension rods, all of which are connected to the transition disk and correspond to the positions of the movable holes one by one, and can move in the movable holes.

[0009] As a further improvement of the utility model, a through hole is provided on the support seat, and the cylinder pull rod is located in the movable hole.

[0010] As a further improvement of the utility model, a movable groove is provided on the lower side of the cylinder body positioning seat, the movable groove is communicated with the movable hole, and the transition plate is located in the movable groove.

[0011] As a further improvement of the utility model, a driven notch is provided on the tension rod, and the driven notch wraps the transition disk.

[0012] As a further improvement of the utility model, a top block is provided at the upper end of the tension rod, and the top block is detachably connected to the tension rod.

[0013] As a further improvement of the utility model, the edge of the transition plate is provided with a mounting notch, and the lower end of the tension rod can pass through the mounting notch.

[0014] The beneficial effects of the utility model are that the clamp has fast clamping and lowering speeds, a stable position during clamping, and low position accuracy requirements during initial placement, thereby improving production efficiency and improving product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model when clamping the compressor cylinder body;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 3 It is a three-dimensional structural diagram of the cylinder support, the tensioning mechanism, and the support seat;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the cylinder body fixing seat.

[0019] Marking instructions: 1. Cylinder support; 2. Tensioning mechanism; 21. Tensioning cylinder; 22. Cylinder pull rod; 23. Transition plate; 231. Installation notch; 24. Tensioning rod; 241. Follower notch; 242. Top block; 3. Support seat; 31. Through hole; 4. Cylinder body positioning seat; 41. Cylinder body positioning rod; 42. Movable hole; 43. Movable groove. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0021] Reference Figure 1 one Figure 4 As shown, a clamp for processing a compressor cylinder assembly in this embodiment includes: a cylinder support 1, a tensioning mechanism 2 and a support seat 3 arranged on the cylinder support 1, the support seat 3 is provided with a cylinder positioning seat 4, the cylinder positioning seat 4 is provided with a plurality of circumferentially distributed cylinder positioning rods 41, the cylinder positioning rods 41 are provided with a plurality of inclined movable holes 42, and the tensioning mechanism 2 includes:

[0022] The tensioning cylinder 21 is fixed on the cylinder support 1 and is located at the lower side of the support base 3;

[0023] The cylinder pull rod 22 is connected to the tensioning cylinder 21 and is vertically arranged on the support seat 3;

[0024] The transition plate 23 is fixedly connected to the cylinder rod 22 and is located on the upper side of the support seat 3;

[0025] There are a plurality of tension rods 24 , all of which are connected to the transition plate 23 , corresponding to the positions of the movable holes 42 one by one, and can move in the movable holes 42 .

[0026] Through the above technical solution, when processing the compressor cylinder body, the compressor cylinder body is first placed on the cylinder body positioning seat 4. It should be pointed out that the diameter of the cylinder hole of the compressor cylinder body is larger than the diameter of the cylinder body positioning rod 41, so that the compressor cylinder body does not need to be precisely positioned when it is initially placed, which is convenient for operation; then the tensioning cylinder 21 is operated, driving the cylinder pull rod 22 to descend, and then driving the transition plate 23 to descend, and then driving the tensioning rod 24 to descend. During this process, the upper ends of the tensioning rods 24 approach each other until they collide with the cylinder hole of the compressor cylinder body. At this time, the compressor cylinder body is fixed. The clamping process will push the compressor cylinder body at each position to the center position (when eccentrically placed, the tensioning rod 24 on the eccentric side first collides with the cylinder hole of the compressor cylinder body, and then pushes the compressor cylinder body to move until the upper ends of all garbage rods collide with the cylinder holes of each compressor cylinder body).

[0027] The tension rod 24 is in the movable hole 42 and is supported by the movable hole 42 , so that the position is stable and the tension rod 24 is stable when clamping the compressor cylinder body.

[0028] After the compressor cylinder body is processed, the cylinder runs, driving the cylinder pull rod 22 to rise, and then driving the transition plate 23 to rise, and then driving the tensioning to rise. During this process, the upper ends of the tensioning rod 24 move away from each other, loosening the cylinder hole of the compressor cylinder body. At this time, the compressor cylinder body can be removed vertically upwards.

[0029] The clamp has fast clamping and lowering speeds, a stable position during clamping, and low position accuracy requirements during initial placement, thereby improving production efficiency and increasing product qualification rate.

[0030] As an improved specific implementation, a through hole 31 is provided on the support seat 3 , and the cylinder pull rod 22 is located in the movable hole 42 .

[0031] Through the above technical solution, the cylinder pull rod 22 is located in the through hole 31 and can be stably lifted and lowered, thereby driving the tension rod 24 to lift and lower.

[0032] As an improved specific implementation, a movable groove 43 is provided at the lower side of the cylinder body positioning seat 4 , the movable groove 43 is communicated with the movable hole 42 , and the transition plate 23 is located in the movable groove 43 .

[0033] Through the above technical solution, the cylinder positioning seat 4 is fixed to the support seat 3 by screws. After the installation is completed, the transition plate 23 is protected in the area between the movable groove 43 and the support seat 3 to prevent the debris processed during the compressor cylinder body from entering the gap and affecting the lifting and lowering of the transition plate 23 and the tension rod 24, thereby improving the stability during use.

[0034] As an improved specific implementation, a driven notch 241 is provided on the tension rod 24 , and the driven notch 241 wraps the transition disk 23 .

[0035] Through the above technical solution, the edge of the transition disk 23 is located in the driven notch 241 of the tension rod 24, connected to the tension rod 24, stable when driven, and easy to disassemble and assemble.

[0036] As an improved specific implementation, a top block 242 is provided at the upper end of the tension rod 24 , and the top block 242 is detachably connected to the tension rod 24 .

[0037] Through the above technical solution, the top block 242 protrudes inward and is perpendicular to the hole wall of the compressor cylinder body, which can better fix the compressor cylinder body, and the top block 242 is removable and replaceable (fixed by screws and screw holes). After replacement, another type of compressor cylinder body can be processed, which is easy to operate and flexible to use.

[0038] Specifically, the top block 242 is made of nylon / rubber material to avoid scratching the compressor cylinder.

[0039] As an improved specific implementation, a mounting notch 231 is provided on the edge of the transition plate 23 , and the lower end of the tension rod 24 can pass through the mounting notch 231 .

[0040] Through the above technical solution, when installing the support seat 3, cylinder body positioning seat 4, transition plate 23, cylinder tie rod 22 and tension rod 24, first connect the transition plate 23 with the cylinder tie rod 22, then insert the cylinder tie rod 22 into the support seat 3, and then install the cylinder body positioning seat 4 on the support seat 3 (at this time the transition plate 23 is located in the movable groove 43), and then install the tension rod 24 into the movable hole 42 in turn.

[0041] The installation process of the tension rod 24 is as follows:

[0042] First, rotate the cylinder pull rod 22 to drive the transition disk 23 to rotate, so that the installation gap 231 corresponds to any active hole 42, and then insert the tensioning rod 24 into the active hole 42. At this time, the driven gap 241 corresponds to the installation gap 231. Then rotate the cylinder pull rod 22 to rotate the transition disk 23 so that the installation gap 231 is misaligned with the driven gap 241. Rotate the installation gap 231 to correspond to the next active hole 42, and install the next tensioning rod 24. Repeat the above operation. After all the tensioning rods 24 are installed, rotate the cylinder pull rod 22 to drive the transition disk 23 to rotate, so that the installation gap 231 is misaligned with all the driven gaps 241, and the installation is completed.

[0043] This structure and installation method ensures that the tension rod 24 and the movable hole 42 are closely fitted, and the compressor cylinder body is highly stable when being grasped.

[0044] Furthermore, the tension rod 24 can be replaced separately after being damaged, and the transition disc 23 is processed separately, and the tension rods 24 are processed one by one, which is convenient for processing.

[0045] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A fixture for machining compressor cylinder components, It is characterized in that The invention comprises: a cylinder support (1), a tensioning mechanism (2) and a support seat (3) arranged on the cylinder support (1); a cylinder body positioning seat (4) is arranged on the support seat (3); a plurality of circumferentially distributed cylinder body positioning rods (41) are arranged on the cylinder body positioning rods (41); a plurality of inclined movable holes (42) are arranged on the cylinder body positioning rods (41); the tensioning mechanism (2) comprises: A tensioning cylinder (21) is fixed on the cylinder support (1) and is located at the lower side of the support base (3); A cylinder pull rod (22) is connected to the tensioning cylinder (21) and is vertically arranged on the support seat (3); A transition plate (23) is fixedly connected to the cylinder pull rod (22) and is located on the upper side of the support seat (3); The tension rods (24) are provided with a plurality of rods, all of which are connected to the transition plate (23) and correspond to the positions of the movable holes (42) one by one, and can move in the movable holes (42).

2. The machining fixture for compressor cylinder assembly according to claim 1, Features: The support seat (3) is provided with a through hole (31), and the cylinder pull rod (22) is located in the movable hole (42).

3. The machining fixture for compressor cylinder assembly according to claim 1 or 2, Features: A movable groove (43) is provided on the lower side of the cylinder body positioning seat (4), the movable groove (43) is communicated with the movable hole (42), and the transition plate (23) is located in the movable groove (43).

4. The machining fixture for compressor cylinder assembly according to claim 1 or 2, Features: The tension rod (24) is provided with a driven notch (241), and the driven notch (241) wraps around the transition disk (23).

5. The machining fixture for compressor cylinder assembly according to claim 1 or 2, Features: A top block (242) is provided at the upper end of the tension rod (24), and the top block (242) is detachably connected to the tension rod (24).

6. The machining fixture for compressor cylinder assembly according to claim 1 or 2, Features: The edge of the transition plate (23) is provided with a mounting notch (231), and the lower end of the tension rod (24) can pass through the mounting notch (231).

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