Refrigeration compressor shell processing gauge

Abstract

The utility model discloses a kind of refrigeration compressor shell processing gauges, including base and the upper beam being installed on the top of base, upper beam side is equipped with as inclined hole detection reference inclined surface, second detection component is integrated on inclined surface. The second detection component includes sliding shaft, which is slidingly penetrated on the inclined surface, the sliding shaft end is fixed with detection block, the bottom surface of detection block is in contact with the inclined surface of workpiece. The utility model is compact in structure, easy to operate, through mechanical positioning and clamping, the consistency of detection is ensured, especially suitable for rapid detection on production line, significantly improve production efficiency and product quality control level.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration compressor housing processing, and to a refrigeration compressor housing processing inspection tool. Background Technology

[0002] As the core sealing component of the refrigeration compressor, the machining precision of the compressor housing directly determines the sealing effect of the internal motor and mechanical parts. The machining precision of the housing is crucial to equipment performance, energy efficiency, and reliability; it not only affects sealing and mechanical stability but also has a decisive impact on the compressor's lifespan. A high-precision housing can effectively prevent refrigerant leakage, thereby reducing energy loss and avoiding system failures caused by leakage. Therefore, the design and manufacturing quality of the inspection fixtures used to control machining quality are directly related to product quality and production efficiency.

[0003] To ensure machining accuracy, the processing of the refrigeration compressor housing must follow a strict process route. The first step uses the rough surface formed by casting as a temporary reference to finish the bottom surface of the base and the two perpendicularly intersecting sides of the refrigeration compressor housing blank. Then, these planes are used as reference surfaces for subsequent machining to complete the machining of features such as circular holes and internal cavities, ensuring the precise position of these features relative to the reference.

[0004] However, the relative dimensions between the reference surface and features such as the shape and hole system obtained in the first process may deviate significantly from the ideal dimensions. Therefore, after this process is completed, it is necessary to inspect the important relative dimensions to ensure that subsequent processing can proceed normally.

[0005] Traditional inspection methods involve simple manual measurements using calipers. However, due to the irregular shape of the refrigeration compressor casing, manual measurements are difficult and inaccurate. This is especially true for round holes requiring further precision machining located on the side of a 45° inclined plane, where traditional methods cannot provide accurate measurements. Utility Model Content

[0006] This utility model proposes a machining fixture for refrigeration compressor housings, the purpose of which is to solve the problem of irregular shapes of refrigeration compressor housings and the difficulty of manual measurement.

[0007] The technical solution of this utility model is as follows: A machining fixture for a refrigeration compressor housing includes a base and an upper beam mounted on the base. The upper beam has an inclined surface on its side, which serves as a reference for detecting oblique holes. A second detection component is integrated on the inclined surface. The second detection component includes a sliding shaft that slides through the inclined surface. A detection block is fixed at the end of the sliding shaft, and the bottom surface of the detection block contacts the inclined surface of the workpiece.

[0008] As a further improvement of this utility model, the second detection component includes a sliding shaft, which is slidably disposed in a second guide sleeve fixed on an inclined surface; a limiting boss is provided at the top of the second guide sleeve, and a U-shaped groove is provided on the limiting boss; a positioning pin is radially disposed through the top of the sliding shaft, and the two ends of the positioning pin are supported in the U-shaped groove; a screw for tightening the positioning pin is also connected to the top of the sliding shaft to limit the stroke of the sliding shaft.

[0009] As a further improvement of this utility model, a detection rod is provided through the top of the upper beam.

[0010] As a further improvement of this utility model, a second bracket is fixed on the front and rear sides of the base, and the two second brackets are arranged in parallel; the upper beam is installed on the top of the second bracket.

[0011] As a further improvement of this utility model, the base is provided with a positioning and clamping mechanism; the positioning and clamping mechanism includes positioning pillars fixed to the left and right sides of the front part and the right side of the rear part of the base respectively, and the tops of the three positioning pillars form a horizontal support surface; the positioning and clamping mechanism also includes an auxiliary pillar threadedly connected to the left side of the rear part of the base, and a handle is installed on the auxiliary pillar.

[0012] As a further improvement of this utility model, the positioning and clamping mechanism further includes two positioning blocks fixed on the left and right sides of the front part of the base, and the rear sides of the two positioning blocks together form a first vertical positioning plane; the two positioning pillars at the front are fixedly connected to the base by a boss, and the positioning blocks are bolted to the front side wall of the boss; the positioning and clamping mechanism further includes a first clamping component disposed opposite to the positioning blocks and a push rod threadedly connected to the second bracket; by adjusting the first clamping component and the push rod, the workpiece is pushed toward the first vertical positioning plane to achieve positioning and clamping in the front and rear directions; The positioning and clamping mechanism also includes a positioning component fixed to the left side of the front part of the base. The plane on the right side of the positioning component is a second vertical positioning plane that is perpendicular to the first vertical positioning plane. A second clamping component is provided opposite to the positioning component. The second clamping component is used to push the workpiece to the second vertical positioning plane from the right side to achieve positioning and clamping in the left and right directions.

[0013] As a further improvement of this utility model, both the first clamping assembly and the second clamping assembly include a threaded rod, which is movably mounted on the base via a connecting seat.

[0014] As a further improvement of this utility model, a first bracket is fixed on the left and right sides of the base, and the two first brackets are arranged in parallel.

[0015] As a further improvement of this utility model, the first support includes a vertical plate, on which a first detection component is connected. The first detection component includes a sliding rod, and a detection disc is fixed to the side of the sliding rod near the workpiece.

[0016] As a further improvement of this utility model, four positioning rods are arranged in a matrix on the upright plate, and the positioning rods slide through the upright plate and are set perpendicular to the upright plate.

[0017] Compared with the prior art, the present invention has the following advantages: (1) This device, through an inclined surface set on the side of the upper beam as a reference for detecting inclined holes and a second detection component integrated on the inclined surface, can intuitively and quickly detect the position of inclined holes. The second detection component is slidably connected to the inclined surface through a second guide sleeve. The sliding shaft of this component is installed in a U-shaped groove on the limiting boss of the second guide sleeve through a positioning pin that radially penetrates its top, so as to realize the up and down movement of the sliding shaft relative to the inclined surface. At the same time, a screw is set on the top of the sliding shaft to hold the positioning pin in place to prevent the sliding shaft from falling off. In addition, combined with the first detection component and multiple positioning rods on the first bracket, it can quickly detect the irregular shape of the workpiece without relying on precision detection instruments, which significantly improves the detection efficiency.

[0018] (2) This device can detect the vertical hole at the top of the workpiece by means of a detection rod that can pass through the top of the upper beam, so that the inspection tool can fully cover the key feature detection of the workpiece. This integrated design reduces the number of inspection tools and processes.

[0019] (3) This device forms a stable horizontal support surface by using three positioning pillars and adjustable auxiliary pillars on the base, and clamps and fixes the workpiece on the base by using the clamping component and push rod, ensuring that it is stable and does not shake during the detection process, avoiding measurement errors caused by workpiece movement, and improving the reliability and repeatability of the detection.

[0020] (4) This device achieves simultaneous detection of the position and shape of the end face of the workpiece through the first bracket installed on the base and the first detection component and the first guide sleeve thereon. The detection disc in the first detection component can be easily inserted into the end face to determine whether the hole position is qualified; while multiple positioning rods slide in cooperation with the guide sleeve fixed on the vertical plate, which can quickly verify the external dimensions, greatly simplifying the detection process. It is especially suitable for rapid detection on the production line and can significantly improve production efficiency and product quality control level. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model (the diagram also includes the workpiece); Figure 2This is a partial structural schematic diagram of an embodiment of the present utility model (this diagram is used to show the base, positioning and clamping mechanism and bracket, but does not include the workpiece and the upper beam); Figure 3 This is a rear view of an embodiment of the present utility model (including the workpiece). Figure 4 yes Figure 3 Sectional view of AA in the middle; Figure 5 yes Figure 4 Enlarged view of a portion of node A in the middle; Figure 6 This is a right view of an embodiment of the present invention (including the workpiece). Figure 7 yes Figure 6 Middle BB cross-sectional view (This view is mainly used to show the installation relationship between the detection rod, the upper beam, and the workpiece, as well as the structure of the first detection component); Figure 8 yes Figure 6 CC section view (This view is mainly used to show the connection relationship between the positioning rod, the second guide sleeve and the first bracket).

[0022] The reference numerals in the figures include: 1. Base; 2. Positioning support; 3. Auxiliary support; 41. Positioning block; 42. Positioning assembly; 43. First clamping assembly; 44. Second clamping assembly; 5. First bracket; 51. First guide sleeve; 52. First detection assembly; 521. Detection disc; 522. Sliding rod; 53. Positioning rod; 6. Second bracket; 61. Push rod; 7. Upper beam; 8. Detection rod; 9. Second detection assembly; 91. Second guide sleeve; 92. Screw; 93. Positioning pin; 94. Sliding shaft; 95. Detection block. Detailed Implementation

[0023] The technical solution and effects of this utility model will be described in detail below with reference to specific embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0024] like Figures 1 to 3 As shown in the figure, an embodiment of the refrigeration compressor housing processing fixture of this utility model includes a base 1, on which a positioning and clamping mechanism is provided. A first bracket 5 is fixed on the left and right sides of the base 1, and a second bracket 6 is fixed on the front and rear sides of the base 1.

[0025] The positioning and clamping mechanism includes positioning pillars 2 fixed to the left and right sides of the front part and the right side of the rear part of the base 1, respectively. The tops of the three positioning pillars 2 form a horizontal support surface. The positioning and clamping mechanism also includes an auxiliary pillar 3 threadedly connected to the left side of the rear part of the base 1. A handle is installed on the auxiliary pillar 3. Rotating the handle can adjust the height of the auxiliary pillar 3 so that it is flush with the horizontal support surface, providing stable horizontal support for the workpiece.

[0026] like Figure 2 As shown, the positioning and clamping mechanism further includes two positioning blocks 41 fixed to the left and right sides of the front part of the base 1. The rear sides of the two positioning blocks 41 together form a first vertical positioning plane. The two positioning pillars 2 at the front are fixedly connected to the base 1 by a boss, and the positioning blocks 41 are bolted to the front side wall of the boss. The positioning and clamping mechanism also includes a first clamping assembly 43 disposed opposite to the positioning blocks 41 and a push rod 61 threadedly connected to the second bracket 6. The first clamping assembly 43 includes a threaded rod, which is movably mounted on the base 1 through a connecting seat. By adjusting the first clamping assembly 43 and the push rod 61, the workpiece can be pushed towards the first vertical positioning plane to achieve positioning and clamping in the front and rear directions.

[0027] The positioning and clamping mechanism further includes a positioning component 42 fixed to the front left side of the base 1. The plane on the right side of the positioning component 42 is a second vertical positioning plane perpendicular to the first vertical positioning plane. A second clamping component 44 is provided opposite to the positioning component 42. The second clamping component 44 is used to push the workpiece from the right side towards the second vertical positioning plane to achieve positioning and clamping in the left and right directions.

[0028] Two first brackets 5 are arranged in parallel. Each first bracket 5 includes a vertical plate, on which a first guide sleeve 51 is connected. A first detection component 52 for detecting the through hole on the end face of a refrigeration compressor housing workpiece is slidably connected within the first guide sleeve 51. Figure 6 and Figure 7 As shown, the first detection component 52 includes a sliding rod 522. After passing through the first guide sleeve 51, the sliding rod 522 is fixed to a circular detection disk 521. Pushing the sliding rod 522 can cause the detection disk 521 to move back and forth perpendicular to the upright plate. An observation hole is also provided on the upright plate.

[0029] Combination Figure 6 and Figure 8 As shown, four guide sleeves are arranged in a matrix on the upper part of the upright plate. A limiting platform is provided on the guide sleeve, and a positioning rod 53 is slidably connected inside the guide sleeve.

[0030] Two second supports 6 are arranged in parallel, with an upper beam 7 running in a front-to-back direction connected above them. The upper beam 7 is a one-piece cast herringbone beam. The top of the upper beam 7 protrudes upward, and the front and rear sides of the protrusion are provided with inclined surfaces as references for the oblique hole detection. The inclined surfaces slope downward and make an angle of 45° with the horizontal plane. The bottom of the inclined surfaces extends horizontally outward to form a connecting part. The upper beam 7 is bolted to the top plate of the second supports 6 through this connecting part and is precisely positioned by a locating pin.

[0031] like Figure 4 As shown, a through hole is provided on the inclined surface, and a second detection component 9 is installed through the through hole. Combined with... Figure 5 As shown, the second detection component 9 includes a second guide sleeve 91 fixed on an inclined surface. A sliding shaft 94 is provided inside the second guide sleeve 91, and a detection block 95 is fixed to the end of the sliding shaft 94. The detection block 95 is cylindrical, and its bottom surface contacts the inclined surface of the workpiece. The sliding shaft 94 is slidably connected to the second guide sleeve 91. Specifically, a limiting boss is provided at the top of the guide sleeve, and a U-shaped groove is formed on the limiting boss. A positioning pin 93 is radially inserted through the top of the sliding shaft 94, and both ends of the positioning pin 93 are supported in the U-shaped groove. Screws 92 are also connected to the top of the sliding shaft 94 to limit the stroke of the sliding shaft 94.

[0032] like Figure 7 As shown, the top of the upper beam 7 protrudes upward, and a through hole is provided on the protruding part. A detection rod 8 for detecting the top hole of the workpiece can be inserted into the through hole.

[0033] When using the inspection fixture described in this embodiment to inspect a workpiece containing a refrigeration compressor housing, follow these steps: Step 1: Positioning and clamping the workpiece.

[0034] First, place the workpiece on the horizontal support surface formed by the three positioning pillars 2, ensuring that each part of the blank base corresponds to each positioning pillar 2. Adjust the height of the auxiliary pillar 3 so that its top tip contacts the support surface, ensuring the workpiece is stable and does not wobble. Then, adjust the first clamping assembly 43 on the rear side of the base 1 so that the front reference surface of the workpiece is in close contact with the first vertical plane formed by the two positioning blocks 41. Next, adjust the second clamping assembly 44 on the right side and the push rod 61 on the rear second bracket 6 to complete the complete fixation of the workpiece on the base 1.

[0035] Step 2: Testing.

[0036] Left and right end hole position detection: Push the first detection component 52 towards the workpiece. If its detection disk 521 can be inserted normally and its edge does not interfere with the round hole on the end face, then the hole position is qualified.

[0037] Shape inspection: Insert the positioning rods 53 into the second guide sleeve 91 in sequence. If there is no interference between all the positioning rods 53 and the outer contour of the workpiece, the workpiece is considered to be in good shape.

[0038] Top hole position inspection: When inspecting vertical holes, insert the inspection rod 8 into the through hole at the top of the upper beam 7. If it can be inserted normally into the refrigeration compressor housing, the through hole position is qualified. When inspecting inclined holes, push the second inspection component 9 so that the circular inspection block 95 rests against the inclined surface of the workpiece. Then, draw a line along the edge of the circular inspection block 95 through the side through hole. If the edge of the inclined hole falls completely within the outline of the circular inspection block 95, the inclined hole position is considered qualified.

[0039] It should be noted that, as will be apparent to those skilled in the art, this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. The scope of this utility model is defined by the claims rather than the foregoing description.

Claims

1. A machining fixture for a refrigeration compressor housing, comprising a base (1) and an upper beam (7) mounted above the base (1), characterized in that: The upper beam (7) has an inclined surface on its side as a reference for the detection of the inclined hole. A second detection component (9) is integrated on the inclined surface. The second detection component (9) includes a sliding shaft (94) that is slidably disposed on the inclined surface. A detection block (95) is fixed at the end of the sliding shaft (94). The bottom surface of the detection block (95) is in contact with the inclined surface of the workpiece.

2. The refrigeration compressor housing machining fixture as described in claim 1, characterized in that: The second detection component (9) includes a sliding shaft (94), which is slidably disposed in a second guide sleeve (91) fixed on an inclined surface; a limiting boss is provided at the top of the second guide sleeve (91), and a U-shaped groove is provided on the limiting boss; a positioning pin (93) is radially disposed through the top of the sliding shaft (94), and the two ends of the positioning pin (93) are supported in the U-shaped groove; a screw (92) for tightening the positioning pin (93) is also connected to the top of the sliding shaft (94) to limit the stroke of the sliding shaft (94).

3. The machining fixture for the refrigeration compressor housing as described in claim 1, characterized in that: A detection rod (8) is installed through the top of the upper beam (7).

4. The refrigeration compressor housing machining fixture as described in claim 1, characterized in that: A second bracket (6) is fixed on the front and back sides of the base (1), and the two second brackets (6) are arranged in parallel; the upper beam (7) is installed on the top of the second bracket (6).

5. The refrigeration compressor housing machining fixture as described in claim 1, characterized in that: The base (1) is provided with a positioning clamping mechanism; the positioning clamping mechanism includes positioning pillars (2) fixed on the left and right sides of the front part and the right side of the rear part of the base (1) respectively, and the tops of the three positioning pillars (2) form a horizontal support surface; the positioning clamping mechanism also includes an auxiliary pillar (3) threadedly connected to the left side of the rear part of the base (1), and a handle is installed on the auxiliary pillar (3).

6. The refrigeration compressor housing machining fixture as described in claim 5, characterized in that: The positioning and clamping mechanism also includes two positioning blocks (41) fixed on the left and right sides of the front part of the base (1). The rear sides of the two positioning blocks (41) together form the first vertical positioning plane. The two positioning pillars (2) at the front are fixedly connected to the base (1) through the boss. The positioning blocks (41) are bolted to the front side wall of the boss. The positioning and clamping mechanism also includes a first clamping component (43) set opposite to the positioning blocks (41) and a push rod (61) threadedly connected to the second bracket (6). By adjusting the first clamping component (43) and the push rod (61), the workpiece is pushed toward the first vertical positioning plane to achieve positioning and clamping in the front and rear directions. The positioning and clamping mechanism also includes a positioning component (42) fixed on the left side of the front part of the base (1). The plane on the right side of the positioning component (42) is a second vertical positioning plane that is perpendicular to the first vertical positioning plane. A second clamping component (44) is provided opposite to the positioning component (42). The second clamping component (44) is used to push the workpiece to the second vertical positioning plane from the right side to achieve positioning and clamping in the left and right directions.

7. The refrigeration compressor housing machining fixture as described in claim 6, characterized in that: Both the first clamping assembly (43) and the second clamping assembly (44) include a threaded rod, which is movably mounted on the base (1) via a connecting seat.

8. The refrigeration compressor housing machining fixture as described in any one of claims 1 to 7, characterized in that: A first bracket (5) is fixed on the left and right sides of the base (1), and the two first brackets (5) are arranged in parallel.

9. The refrigeration compressor housing machining fixture as described in claim 8, characterized in that: The first support (5) includes a vertical plate, on which a first detection component (52) is connected. The first detection component (52) includes a sliding rod (522), and a detection disk (521) is fixed on the side of the sliding rod (522) near the workpiece.

10. The refrigeration compressor housing machining fixture as described in claim 9, characterized in that: The upright plate has four positioning rods (53) arranged in a matrix. The positioning rods (53) slide through the upright plate and are set perpendicular to the upright plate.

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