Pressure detection equipment for mechanical part processing

Abstract

The invention relates to the field of part machining, in particular to pressure detection equipment for mechanical part machining. Comprising a pressing assembly, a plurality of inner supporting assemblies are distributed on the top of the pressing assembly in an annular array mode, and an adjusting assembly is installed on the outer wall of the pressing assembly; the movable rotating disc is driven by the multiple sets of magnetic attraction wheels to conduct auxiliary limiting work; when the tubular and irregular parts are faced, the inner walls of the tubular parts are attached to the outer walls of the two sets of movable rotating discs, then magnetic attraction wheels are started to magnetically attract the movable rotating discs, so that the movable rotating discs cannot flexibly rotate any more, and then electric push rods are started to drive the movable rotating discs to ascend; and when the movable rotating disc ascends, position parallel correction is carried out on the irregular tubular parts, the bottom points of the parts are kept to be located in the arc-shaped grooves and make contact with one set of second pressure sensors, then pressing detection work is carried out, and the flexible detection effect on the irregular cylindrical parts is improved.

Description

Technical Field

[0001] This invention belongs to the field of parts processing technology, and specifically relates to a pressure detection device for processing mechanical parts. Background Technology

[0002] Machining refers to the process of changing the shape, size, or properties of a workpiece using mechanical equipment. It can be divided into cutting and pressure processing according to the difference in processing methods.

[0003] A search revealed that Chinese Patent Publication No. CN111537341A, published on August 14, 2020, discloses a pressure resistance testing device for machining mechanical parts. The upper side of the testing platform is fixedly connected to a vertically arranged L-shaped frame, and a vertically arranged first electric telescopic rod is fixedly connected to the end of the L-shaped frame away from the testing platform. A pressure block is fixedly connected to the lower end of the first electric telescopic rod, and a pressure sensor is provided on the pressure block. This embodiment is designed to clamp and fix mechanical parts of different sizes, thus improving the applicability of the device.

[0004] However, the device still has the following drawbacks: For irregular or internally suspended parts, it is not possible to perform numerical monitoring effectively using a single pressure sensor, thus reducing the pressure detection effect during the machining of mechanical parts. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a pressure detection device for machining mechanical parts. It includes a pressing assembly, on the top of which several sets of inner support assemblies are arranged in a circular array; an adjusting assembly is mounted on the outer wall of the pressing assembly; and several sets of detection assemblies are arranged in a circular array on the adjusting assembly. The pressing assembly includes a working bracket, a hydraulic push rod is mounted on the bottom of the working bracket, and a pressing column is mounted on the output end of the hydraulic push rod; The internal support assembly includes a placement block that keeps the bottom of the part in the arc-shaped groove and in contact with one of the sets of second pressure sensors. Each set of placement blocks has several sets of arc-shaped grooves evenly spaced on its top. Each set of arc-shaped grooves contains one set of second pressure sensors. Each set of placement blocks has a set of fixing plates installed on one side wall. An electric push rod is installed on the top of the fixing plate. Each set of electric push rods has a set of magnetic rollers installed on its output end. Each set of magnetic rollers has a set of movable turntables fitted on its outer wall to perform parallel correction of the irregular tubular parts.

[0006] Furthermore, the pressing assembly also includes a placement disc, on the top of which a first pressure sensor is mounted, and the working bracket is mounted on the outer wall of the placement disc.

[0007] Furthermore, the inner support assembly also includes an electric slide, the bottom of each set of electric slides is mounted on the top of the placement disk, a set of transmission plates is driven to the output end of each set of electric slides, a set of first motors is mounted on the top of each set of transmission plates, and the bottom of each set of placement blocks is driven to the output end of one of the first motors.

[0008] Furthermore, the adjustment component includes a fixed collar, which is fixedly sleeved on the outer wall of the pressing column. Several sets of first compression springs are installed in a circular array on the bottom of the fixed collar, and the other ends of the several sets of first compression springs are connected by a movable collar. Several sets of auxiliary tubes are distributed in a circular array on the bottom of the fixed collar, and a set of third pressure sensors is installed on the bottom of each set of auxiliary tubes.

[0009] Furthermore, several sets of linear drivers are arranged in a circular array on the bottom of the movable collar, and a set of rectangular blocks are installed on the output end of each set of linear drivers.

[0010] Furthermore, a second motor is installed on the bottom of each group of rectangular blocks, and a monitoring structure is installed on the outer wall of each group of rectangular blocks.

[0011] Furthermore, the detection component includes a first connecting plate, the top of each set of first connecting plates is driven to the output end of one set of second motors, a set of fixing plates is installed on one side wall of each set of first connecting plates, a set of third motors is installed on one side wall of each set of fixing plates, and a set of second connecting plates is driven to the output end of each set of third motors.

[0012] Furthermore, two sets of sliding tubes are symmetrically installed on one side wall of each group of second connecting plates, and a set of annular grooves are opened on one side wall of each group of fixed plates. Each set of sliding tubes is slidably connected in the annular grooves. A set of mounting plates is installed on the bottom of each group of second connecting plates, and a set of third connecting plates is installed on the bottom of each set of mounting plates. A set of slides is opened on one side wall of each set of third connecting plates, and two sets of magnetic strips are provided in each set of slides.

[0013] Furthermore, a fourth connecting plate is installed on the bottom of each set of mounting plates, and a cavity is opened on each set of fourth connecting plates. A fourth pressure sensor is installed in each cavity.

[0014] Furthermore, each set of fourth connecting plates has a set of second compression springs installed at one end of its bottom, and each set of second compression springs has a set of magnetic blocks installed at the other end of its other end. The magnetic blocks are magnetically connected to the magnetic strips. Each set of magnetic blocks has a set of bonding plates installed at its bottom, and each set of bonding plates is slidably connected in the slide rail.

[0015] The beneficial effects of this invention are: 1. Several sets of magnetic rollers drive the movable turntable for auxiliary limiting work; when dealing with tubular and irregular parts, the inner wall of the tubular part is attached to the outer wall of the two sets of movable turntables, and then the magnetic rollers are activated to magnetically attract the movable turntable, making it unable to rotate flexibly. Then, the electric push rod is activated to drive the movable turntable to rise. As the movable turntable rises, it corrects the position of the irregular tubular part, keeping the bottom point of the part in the arc groove and in contact with one of the second pressure sensors. Then, the pressing detection is performed, which improves the flexible detection effect for irregular cylindrical parts.

[0016] 2. The bonding plate slides and gently presses within the slide. When the detection fails or the pressing fails, the magnetic strip can be powered on, causing it to magnetically connect with the magnetic block. When the magnetic strip and the magnetic block are in a magnetically attracted state, the second compression spring can no longer provide cushioning. This results in several sets of bonding plates forming a fixed connection between the parts. At this time, the weight of the pressing column will act on the first compression spring, which will cushion the weight of subsequent pressing columns. The weight will only act on the first pressure sensor, preventing damage to the parts at the detection point caused by the weight of subsequent pressing columns, thus improving the pressure detection effect of mechanical parts processing.

[0017] 3. When inspecting irregular parts, place the part on the placement disc, then activate the hydraulic push rod to push the pressing column against the surface of the part. Subsequently, activate the linear actuator to move the rectangular block closer to the part. During the movement, the monitoring structure monitors the movement in real time. In subsequent inspections, a second motor can be activated to rotate the inspection structure to improve the flexibility of the inspection. Since the part is irregular in shape, the distance moved by each set of linear actuators varies according to the shape of the part. After moving to the designated position, it drives several sets of bonding plates to adhere to the part, improving the compatibility of position adjustment.

[0018] 4. To better fit the parts and prevent disengagement during subsequent pressing, the third motor is activated to rotate the second connecting plate. Simultaneously, the second connecting plate rotates, causing the third connecting plate to rotate as well. This results in a larger contact area between the bonding plate and the parts. At the same time, the rotation also causes the fourth pressure sensor, located within the cavity, to contact the surface of the parts. During subsequent pressing, the fourth pressure sensor can perform localized pressure detection. Furthermore, the rotation of the second connecting plate by the third motor causes the sliding tube to slide within the annular groove. This provides better protection for the output shaft of the third motor during subsequent pressing operations, improving structural protection and extending the structure's service life.

[0019] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the pressure detection device according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the adjustment component structure according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the pressing component structure according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the internal support component structure according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of a movable collar structure according to an embodiment of the present invention is shown; Figure 6 A schematic cross-sectional view of the movable collar according to an embodiment of the present invention is shown; Figure 7 A schematic diagram of the detection component structure according to an embodiment of the present invention is shown; Figure 8 A schematic diagram of the bonding plate structure according to an embodiment of the present invention is shown.

[0022] In the diagram: 1. Pressing assembly; 101. Placement disc; 102. First pressure sensor; 103. Working bracket; 104. Hydraulic push rod; 105. Pressing column; 2. Inner support assembly; 201. Electric slide; 202. Transmission plate; 203. First motor; 204. Placement block; 205. Second pressure sensor; 206. Fixing plate; 207. Electric push rod; 208. Magnetic suction wheel; 209. Movable turntable; 3. Adjustment assembly; 301. Fixed collar; 302. First compression spring; 303. Movable collar; 304. Auxiliary tube; 305. 306. Third pressure sensor; 307. Linear actuator; 308. Rectangular block; 309. Second motor; 300. Monitoring structure; 4. Detection assembly; 401. First connecting plate; 402. Fixing plate; 403. Third motor; 404. Second connecting plate; 405. Sliding tube; 406. Annular groove; 407. Mounting plate; 408. Third connecting plate; 409. Slide rail; 410. Fourth connecting plate; 411. Cavity; 412. Fourth pressure sensor; 413. Second compression spring; 414. Magnetic block; 415. Adhesive plate; 416. Magnetic strip. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] This invention provides a pressure detection device for machining mechanical parts. It includes a pressing component 1, exemplarily, such as... Figure 1 and Figure 2 As shown, several sets of inner support components 2 are arranged in a ring array on the top of the pressing component 1, and an adjustment component 3 is installed on the outer wall of the pressing component 1. Several sets of detection components 4 are arranged in a ring array on the adjustment component 3.

[0025] For example, such as Figure 3 As shown, the pressing assembly 1 includes a placement disc 101, a first pressure sensor 102 is installed on the top of the placement disc 101, and a working bracket 103 is installed on the outer wall. A hydraulic push rod 104 is installed on the bottom of the working bracket 103, and a pressing column 105 is installed on the output end of the hydraulic push rod 104.

[0026] For the simplest part processing inspection, simply place the part on the placement disc 101 and let it contact the first pressure sensor 102. Then, activate the hydraulic push rod 104 to push the pressing column 105 to press the part, and perform the inspection by observing the value of the first pressure sensor 102.

[0027] For example, such as Figure 4 As shown, the inner support assembly 2 includes an electric slide 201. The bottom of each set of electric slides 201 is mounted on the top of the placement disc 101. A set of transmission plates 202 are driven to the output end of each set of electric slides 201. A set of first motors 203 are mounted on the top of each set of transmission plates 202. A set of placement blocks 204 are driven to the output end of each set of first motors 203. Several sets of arc-shaped grooves are equally spaced on the top of each set of placement blocks 204. A set of second pressure sensors 205 are installed in each set of arc-shaped grooves. A set of fixing plates 206 are installed on one side wall of each set of placement blocks 204. An electric push rod 207 is installed on the top of the fixing plate 206. A set of magnetic wheels 208 are installed on the output end of each set of electric push rods 207. A set of movable turntables 209 are sleeved on the outer wall of each set of magnetic wheels 208.

[0028] When performing parts inspection, several sets of magnetic rollers 208 can be used to drive the movable turntable 209 for auxiliary positioning. When dealing with tubular and irregular parts, the electric slide 201 is activated to move the transmission plate 202 closer to the first pressure sensor 102. Then, the first motor 203 is activated to rotate the fixed plate 206. Subsequently, the inner wall of the tubular part is attached to the outer wall of the two sets of movable turntables 209. Then, the magnetic rollers 208 are activated to magnetically attract the movable turntables 209, making them unable to rotate flexibly. Then, the electric push rod 207 is activated to raise the movable turntables 209. As the movable turntables 209 rise, they perform parallel alignment correction on the irregular tubular parts, keeping the bottom point of the part in the arc groove and in contact with one of the sets of second pressure sensors 205. Then, the pressing test is performed, which improves the flexible inspection effect for irregular cylindrical parts.

[0029] For example, such as Figure 5 and Figure 6As shown, the adjustment component 3 includes a fixed collar 301, which is fixedly sleeved on the outer wall of the pressing column 105. Several sets of first compression springs 302 are arranged in a circular array at the bottom of the fixed collar 301, and movable collars 303 connect the other ends of the sets of first compression springs 302. Several sets of auxiliary tubes 304 are arranged in a circular array at the bottom of the fixed collar 301. A set of third pressure sensors 305 is installed at the bottom of each set of auxiliary tubes 304. Several sets of linear actuators 306 are arranged in a circular array at the bottom of the movable collar 303. A set of rectangular blocks 307 is installed at the output end of each set of linear actuators 306. A set of second motors 308 is installed at the bottom of each set of rectangular blocks 307. A set of monitoring structures 309 is installed on the outer wall of each set of rectangular blocks 307.

[0030] When inspecting irregular parts, the part is first placed on the placement disc 101. Then, the hydraulic push rod 104 is activated to push the pressing column 105 against the surface of the part. Subsequently, the linear actuator 306 is activated to drive the rectangular block 307 to move closer to the part. During the movement, the monitoring structure monitors the movement in real time. In subsequent inspections, a second motor can be activated to drive the inspection structure to rotate, thereby improving the flexibility of the inspection. Since the part is irregular in structure, the distance that each set of linear actuators 306 moves varies according to the shape of the part. After moving to the designated position, it drives several sets of bonding plates 415 to bond to the part, improving the compatibility of position adjustment.

[0031] For example, such as Figure 7 and Figure 8As shown, the detection component 4 includes a first connecting plate 401. The top of each set of first connecting plates 401 is drivenly connected to the output end of one set of second motors 308. A set of fixing discs 402 is installed on one side wall of each set of first connecting plates 401. A set of third motors 403 is installed on one side wall of each set of fixing discs 402. A set of second connecting plates 404 is drivenly connected to the output end of each set of third motors 403. Two sets of sliding tubes 405 are symmetrically installed on one side wall of each set of second connecting plates 404. An annular groove 406 is formed on one side wall of each set of fixing discs 402. Each set of sliding tubes 405 is slidably connected in the annular groove 406. A set of mounting plates 407 is installed on the bottom of each set of second connecting plates 404. A set of mounting plates 407 is installed on the bottom of each set of mounting plates 407. There is a set of third connecting plates 408. Each set of third connecting plates 408 has a set of slide rails 409 on one side wall. Each set of slide rails 409 has two sets of magnetic strips 416. Each set of mounting plates 407 has a set of fourth connecting plates 410 installed at the bottom. Each set of fourth connecting plates 410 has a set of cavities 411. Each set of cavities 411 has a set of fourth pressure sensors 412 installed at the bottom of each set of fourth connecting plates 410. One end of each set of second compression springs 413 is installed at the other end of each set of second compression springs 413. The magnetic blocks 414 are magnetically connected to the magnetic strips 416. Each set of magnetic blocks 414 has a set of bonding plates 415 installed at the bottom of each set of magnetic blocks 414. Each set of bonding plates 415 is slidably connected in the slide rails 409.

[0032] To better fit the parts and prevent disengagement during subsequent pressing, the third motor 403 is activated to rotate the second connecting plate 404. Simultaneously, the rotation of the second connecting plate 404 rotates the third connecting plate 408, causing the bonding plate 415 to adhere to the parts with a larger contact area. At the same time, the rotation also causes the fourth pressure sensor 412, located within the cavity 411, to contact the surface of the parts. During subsequent pressing, the fourth pressure sensor 412 can perform localized pressure detection. Furthermore, as the third motor 403 rotates the second connecting plate 404, the sliding tube 405 slides within the annular groove 406. This provides better protection for the output shaft of the third motor 403 during subsequent pressing operations, improving structural protection and extending the structure's service life.

[0033] The hydraulic push rod 104 is activated to push the pressing column 105 to press and test the part. During the test, the pressing column 105 slowly descends and drives the bonding plate 415 to slide and relieve pressure within the slide rail 409. After the test is completed or the pressing fails, the magnetic strip 416 can be powered on, so that the magnetic strip 416 and the magnetic block 414 are magnetically connected. When the magnetic strip 416 and the magnetic block 414 are in a magnetically attracted state, the second compression spring 413 can no longer buffer, which makes several sets of bonding plates 415 form a fixed connection for the part. At this time, the weight of the pressing column 105 will act on the first compression spring 302, which will buffer the weight of the subsequent pressing column 105. The weight will only act on the first pressure sensor 102, avoiding damage to the part at the test point caused by the weight of the subsequent pressing column 105, thus improving the pressure detection effect of mechanical parts processing.

[0034] Several sets of magnetic rollers 208 drive the movable turntable 209 for auxiliary limiting work; when dealing with tubular and irregular parts, the inner wall of the tubular part is attached to the outer wall of the two sets of movable turntables 209, and then the magnetic rollers 208 are activated to magnetically attract the movable turntable 209, making the movable turntable 209 unable to rotate flexibly. Then, the electric push rod 207 is activated to drive the movable turntable 209 to rise. While the movable turntable 209 rises, it performs parallel correction of the irregular tubular part, keeping the bottom point of the part in the arc groove and in contact with one of the sets of second pressure sensors 205, and then performs the pressing detection work, which improves the flexible detection effect for irregular cylindrical parts.

[0035] The bonding plate 415 slides and gently presses within the slide rail 409. After detection of positioning or failure of pressing, the magnetic strip 416 can be powered, causing it to magnetically connect with the magnetic block 414. When the magnetic strip 416 and the magnetic block 414 are in a magnetically attracted state, the second compression spring 413 can no longer provide buffering. This results in several sets of bonding plates 415 forming a fixed connection between the parts. At this time, the weight of the pressing column 105 will act on the first compression spring 302, which will buffer the weight of the subsequent pressing column 105. The weight will only act on the first pressure sensor 102, preventing the weight of the subsequent pressing column 105 from damaging the parts at the detection point and improving the pressure detection effect of mechanical parts processing.

[0036] When inspecting irregular parts, the part is placed on the placement disc 101, and then the hydraulic push rod 104 is activated to push the pressing column 105 against the surface of the part. Then, the linear actuator 306 is activated to drive the rectangular block 307 to move closer to the part. During the movement, the monitoring structure 309 monitors in real time. In subsequent inspections, the second motor 308 can be activated to drive the inspection structure to rotate, thereby improving the flexibility of the inspection. Since the part is irregular in structure, the distance that each set of linear actuators 306 moves is also different according to the shape of the part. After moving to the designated position, it drives several sets of bonding plates 415 to bond to the part, improving the compatibility of position adjustment.

[0037] To better fit the parts and prevent disengagement during subsequent pressing, the third motor 403 is activated to rotate the second connecting plate 404. Simultaneously, the rotation of the second connecting plate 404 rotates the third connecting plate 408, causing the bonding plate 415 to adhere to the parts with a larger contact area. At the same time, the rotation also causes the fourth pressure sensor 412, located within the cavity 411, to contact the surface of the parts. During subsequent pressing, the fourth pressure sensor 412 can perform localized pressure detection. Furthermore, as the third motor 403 rotates the second connecting plate 404, the sliding tube 405 slides within the annular groove 406. This provides better protection for the output shaft of the third motor 403 during subsequent pressing operations, improving structural protection and extending the structure's service life.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pressure detection device for machining mechanical parts, comprising a pressing assembly, characterized in that: The top of the pressing component has several sets of inner support components arranged in a circular array, and the outer wall of the pressing component is equipped with an adjustment component, which has several sets of detection components arranged in a circular array. The pressing assembly includes a working bracket, a hydraulic push rod is mounted on the bottom of the working bracket, and a pressing column is mounted on the output end of the hydraulic push rod; the pressing assembly also includes a placement disc, and a first pressure sensor is mounted on the top of the placement disc. The internal support assembly includes a placement block that keeps the bottom of the part in the arc-shaped groove and in contact with one of the sets of second pressure sensors. Each set of placement blocks has several sets of arc-shaped grooves evenly spaced on its top. Each set of arc-shaped grooves is equipped with a set of second pressure sensors. Each set of placement blocks has a set of fixing plates installed on one side wall. An electric push rod is installed on the top of the fixing plate. Each set of electric push rods has a set of magnetic wheels installed on its output end. Each set of magnetic wheels has a set of movable turntables fitted on its outer wall to perform parallel correction of the position of irregular tubular parts. The adjustment assembly includes a fixing collar, which is fixedly sleeved on the outer wall of the pressing column, and a plurality of sets of first compression springs are installed in a ring array on the bottom of the fixing collar. The detection assembly includes several sets of third connecting plates and several sets of fourth connecting plates. Each set of third connecting plates has a set of slides on one side wall, and each set of slides contains two sets of magnetic strips. Each set of fourth connecting plates has a set of cavities, and each set of cavities contains a set of fourth pressure sensors. Each set of fourth connecting plates has one end of a set of second compression springs installed at its bottom, and each set of second compression springs has a set of magnetic blocks installed at its other end. The magnetic blocks are magnetically connected to the magnetic strips, and each set of magnetic blocks has a set of bonding plates installed at its bottom.

2. The pressure testing device for machining mechanical parts according to claim 1, characterized in that: The working support is installed on the outer wall where the disc is placed.

3. The pressure testing device for machining mechanical parts according to claim 2, characterized in that: The internal support assembly also includes an electric slide, the bottom of each set of electric slides is mounted on the top of the placement disk, a set of transmission plates is driven to the output end of each set of electric slides, a set of first motors is mounted on the top of each set of transmission plates, and the bottom of each set of placement blocks is driven to the output end of one of the first motors.

4. The pressure testing device for machining mechanical parts according to claim 1, characterized in that: A movable collar is connected between the other ends of several sets of the first compression springs. Several sets of auxiliary tubes are arranged in a circular array on the bottom of the fixed collar, and a set of third pressure sensors is installed on the bottom of each set of auxiliary tubes.

5. The pressure testing device for machining mechanical parts according to claim 4, characterized in that: The bottom of the movable collar has several sets of linear drivers arranged in a ring array, and each set of linear drivers has a set of rectangular blocks installed on its output end.

6. The pressure testing device for machining mechanical parts according to claim 5, characterized in that: A second motor is installed at the bottom of each set of rectangular blocks, and a monitoring structure is installed on the outer wall of each set of rectangular blocks.

7. The pressure testing device for machining mechanical parts according to claim 6, characterized in that: The detection assembly also includes a first connecting plate. The top of each set of first connecting plates is driven to the output end of one set of second motors. A set of fixing plates is installed on one side wall of each set of first connecting plates. A set of third motors is installed on one side wall of each set of fixing plates. A set of second connecting plates is driven to the output end of each set of third motors.

8. The pressure testing device for machining mechanical parts according to claim 7, characterized in that: Two sets of sliding tubes are symmetrically installed on one side wall of each group of the second connecting plates. A set of annular grooves is opened on one side wall of each group of the fixed plates. Each set of sliding tubes is slidably connected in the annular grooves. A set of mounting plates is installed on the bottom of each group of the second connecting plates. Each set of the third connecting plates is installed on the bottom of the mounting plates.

9. A pressure testing device for machining mechanical parts according to claim 1, characterized in that: The fourth connecting plate in each group is installed on the bottom of the mounting plate.

10. A pressure testing device for machining mechanical parts according to claim 1, characterized in that: Each set of bonding panels is slidably connected within the slide rail.

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