Clamp based on pressure adjustment and clamping method for automobile part machining

Abstract

The invention belongs to the technical field of clamps, and particularly relates to a clamp based on pressure adjustment and a clamping method for automobile part machining, the clamp comprises a mounting base, a fixing part is arranged on the upper portion of the mounting base, and the fixing part can be inserted into and fixed to the upper portion of the mounting base and arranged on the side face of the mounting base in a bent mode; the butt joint part is arranged on the upper portion of the fixing part, various devices can be fixedly arranged on the upper portion of the butt joint part, the butt joint part can be conveniently disassembled and assembled on the upper portion of the fixing part, and the assembling flexibility is improved; the upper portion of the butt joint part is connected with the clamping part through a bolt, the automobile part can be clamped and fixed through the clamping part, meanwhile, the clamping pressure can be monitored, and the conditions of excessive pressure and non-clamping are avoided. The fixing part can be flexibly mounted at the mounting base, the use flexibility of equipment is improved, and meanwhile, the clamping pressure on automobile parts can be adjusted through the clamping part.

Description

Technical Field

[0001] This invention belongs to the field of clamping technology, specifically relating to a clamping method for machining automotive parts based on pressure regulation. Background Technology

[0002] The subframe is the skeleton of the front and rear axles and is a component of the axles. The subframe is not a complete frame; it is merely a support structure that holds the front and rear axles and suspension together, connecting them to the main frame. It is conventionally called a "subframe," and there are front and rear subframes. The function of the subframe is to isolate vibrations and noise.

[0003] Subframes are typically assembled from multiple metal beams and then welded together. During the welding process, to improve welding accuracy, multiple clamps are needed to limit and hold each component. However, most common clamps can only be used for subframes with one design parameter. Clamp-type clamps are the most common, but their opening and closing strokes are fixed, and their structure is also fixed. They can only hold the corresponding subframe, which means that a welding production line can only produce subframes with the same parameters. It is impossible to change subframes with different parameters when changing car models, which requires redesigning and replacing the clamps. This process is cumbersome and costly. Summary of the Invention

[0004] The purpose of this invention is to provide a pressure-adjustable clamp and a clamping method for machining automotive parts, which can flexibly install the fixing part on the mounting base, improve the flexibility of equipment use, and adjust the clamping pressure on automotive parts through the clamping part.

[0005] The specific technical solution adopted by this invention is as follows:

[0006] A pressure-adjustable clamp and a clamping method for machining automotive parts include a mounting base, the upper part of which is provided with a fixing part, the fixing part being able to be inserted into and fixed to the upper part of the mounting base and bent and disposed on the side of the mounting base.

[0007] The upper part of the fixing part is provided with a docking part, and various devices can be fixedly installed on the upper part of the docking part. The docking part can be easily disassembled and assembled on the upper part of the fixing part, improving the flexibility of assembly.

[0008] The upper part of the docking part is connected to a clamping part by bolts. The clamping part can clamp and fix the car parts, and can also monitor the clamping pressure to avoid excessive pressure and failure to clamp.

[0009] The fixing part includes a mounting base, a locking pin, a clamping bolt, a rotating handle, and a connecting seat. There are two mounting bases, the lower parts of which are in contact with the upper part of the mounting base. There are two locking pins, which are slidably disposed inside one mounting base. The clamping bolt is rotatably disposed inside the mounting base, and the outer edge of the clamping bolt is threadedly connected to the two corresponding locking pins. The center of the rotating handle is fixedly connected to one end of the clamping bolt. The connecting seat is disposed between the two mounting bases, and the two ends of the connecting seat are slidably connected to the interior of the two sides of the mounting base.

[0010] In a preferred embodiment, the upper part and the side of the mounting base are provided with mounting holes arranged in a grid, and the mounting holes cooperate with the lower end of the locking pin.

[0011] In a preferred embodiment, the lower end of the locking pin is provided with a bevel, which mates with the mounting hole.

[0012] In a preferred embodiment, the threads on the outer edges of the two ends of the extrusion bolt are opposite.

[0013] In a preferred embodiment, the connecting seat comprises a rotating seat, a rotating arm, and a rotating pin. The inner side of one end of the rotating seat is slidably connected to the interior of both sides of the mounting seat. The rotating arm is rotatably connected to the other end of the rotating seat. The inner side of the rotating arm is slidably connected to the interior of both sides of the other mounting seat. The rotating pin is located at the position where the rotating seat and the rotating arm are rotatably connected.

[0014] In a preferred embodiment, the docking part includes a docking seat, a limiting ridge, a locking block, a pull handle, and an elastic reset member. The inner side of the docking seat mates with the upper part of the mounting base. The limiting ridge is fixedly disposed on the inner side of the docking seat and can be inserted into the interior of the mounting base. Two locking blocks are provided, and the two locking blocks are slidably disposed inside the two sides of the docking seat, and the locking blocks mate with the two ends of the rotating pin. One end of the pull handle is fixedly connected to one end of the locking block. The elastic reset member is disposed between the locking block and the docking seat.

[0015] In a preferred embodiment, locking grooves are provided inside both sides of the docking seat, and the locking grooves cooperate with the two ends of the rotating pin. The lower part of one end of the locking block is provided as an inclined surface, and the inclined surface also cooperates with the two ends of the rotating pin.

[0016] In a preferred embodiment, the clamping part includes a clamping base, a drive motor, a drive screw, a drive block, a support seat, a sliding seat, a pressure sensor, and an elastic pressing member. The lower end of the clamping base is fixed to the interior of the mating seat by bolts. The drive motor is fixedly connected to the interior of the clamping base. The drive screw is rotatably disposed inside the clamping base, and one end of the drive screw is fixedly connected to the output end of the drive motor. The interior of the lower end of the drive block is threadedly connected to the outer edge of the drive screw. The drive block is slidably connected to the interior of the clamping base. The support seat is fixedly connected to the upper end of the clamping base. One end of the sliding seat is slidably connected to the interior of the upper end of the drive block, and the sliding seat corresponds to the support seat. The pressure sensor is fixedly connected to the interior of the drive block. The elastic pressing member is disposed between the sliding seat and the pressure sensor.

[0017] In a preferred embodiment, rubber blocks are fixedly provided on the corresponding side of the sliding seat and the support seat.

[0018] A clamping method for machining automotive parts, applied to the aforementioned pressure-adjustable clamp, includes the following steps;

[0019] Step 1: Install the fixing part horizontally or bend it to install it on the upper or side of the mounting base according to the clamping requirements of the automotive parts;

[0020] Step 2: Then, rotate the handle to open the locking pin inside the mounting hole, thus fixing the entire fixing part to the mounting base.

[0021] Step 3: Then, insert the mating part into the upper part of the corresponding mounting base, so that the mating part self-locks into the upper part of the mounting base;

[0022] Step 4: Then, fix the clamping part to the required position on the upper part of the mating part with bolts;

[0023] Step 5: The clamping part is used to clamp and fix the automotive parts.

[0024] The technical effects achieved by this invention are as follows:

[0025] The present invention adopts a design of mounting base and fixing part. The mounting base has mounting holes arranged in a grid on the upper part and the side. The mounting holes cooperate with the lower end of the locking pin in the fixing part. Multiple mounting holes can realize multi-point positioning and installation of the locking pin, improving the flexibility of the fixing part installation.

[0026] The present invention adopts a clamping part design, which can clamp and fix the internal automotive parts while monitoring the clamping pressure on the automotive parts to avoid excessive pressure and failure to clamp, thus ensuring the clamping effect of the automotive parts.

[0027] This invention employs a docking section design. Multiple mounting slots are provided inside the docking seat, allowing for the installation of various required devices and improving the flexibility of device use. At the same time, the docking seat is double-limited by the limiting ridge and the rotating pin, which further ensures the stability of the docking seat when installed on the mounting base. Attached Figure Description

[0028] Figure 1 This is an overall schematic diagram of an embodiment of the present invention;

[0029] Figure 2 This is an enlarged view of the overall assembly of an embodiment of the present invention;

[0030] Figure 3 This is an exploded view of an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the horizontal state of the fixing part in an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the bent state of the fixing part in an embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the bent installation state of the fixing part according to an embodiment of the present invention;

[0034] Figure 7 This is an exploded view of the fixing part according to an embodiment of the present invention;

[0035] Figure 8 This is an exploded view of the docking section according to an embodiment of the present invention;

[0036] Figure 9 This is an exploded view of the clamping part according to an embodiment of the present invention;

[0037] Figure 10 This is an overall combined sectional view of an embodiment of the present invention.

[0038] The attached diagram lists the components represented by each number as follows:

[0039] 1. Mounting base; 101. Mounting hole; 2. Fixing part; 201. Mounting seat; 202. Locking pin; 203. Extrusion bolt; 204. Rotating handle; 205. Connecting seat; 2051. Rotating seat; 2052. Rotating arm; 2053. Rotating pin; 3. Clamping part; 301. Clamping base; 302. Drive motor; 303. Drive screw; 304. Drive block; 305. Support seat; 306. Sliding seat; 307. Pressure sensor; 308. Elastic extrusion component; 4. Connecting part; 401. Connecting seat; 402. Limiting ridge; 403. Locking block; 404. Pull handle; 405. Elastic reset component. Detailed Implementation

[0040] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0042] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0043] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0044] Please see Figures 1 to 10 As shown, the present invention provides a clamping method for processing automotive parts based on pressure regulation, including a mounting base 1, a fixing part 2 provided on the upper part of the mounting base 1, the fixing part 2 being able to be inserted into and fixed on the upper part of the mounting base 1 and bent on the side of the mounting base 1.

[0045] The upper part of the fixing part 2 is provided with a docking part 4, and various devices can be fixedly installed on the upper part of the docking part 4. The docking part 4 can be easily disassembled and assembled on the upper part of the fixing part 2, thereby improving the flexibility of assembly.

[0046] The upper part of the docking part 4 is connected to the clamping part 3 by bolts. The clamping part 3 can clamp and fix the car parts, and at the same time monitor the clamping pressure to avoid excessive pressure and failure to clamp.

[0047] The fixing part 2 includes a mounting base 201, a locking pin 202, a clamping bolt 203, a rotating handle 204, and a connecting seat 205. There are two mounting bases 201, and the lower parts of the two mounting bases 201 are in contact with the upper part of the mounting base 1. There are two locking pins 202, and the two locking pins 202 are slidably disposed inside one mounting base 201. The clamping bolt 203 is rotatably disposed inside the mounting base 201, and the outer edge of the clamping bolt 203 is threadedly connected to the inner threads of the two corresponding locking pins 202. The center of the rotating handle 204 is fixedly connected to one end of the clamping bolt 203. The connecting seat 205 is disposed between the two mounting bases 201, and the two ends of the connecting seat 205 are slidably connected to the inner sides of the mounting base 201.

[0048] Specifically, according to the clamping requirements of the automotive parts, the fixing part 2 is horizontally installed or bent and installed on the upper part or side of the mounting base 1. Then, by rotating the handle 204, the locking pin 202 is opened inside the mounting hole 101 and comes into contact with the inside of the mounting hole 101. At this time, the locking pin 202 fixes the mounting base 201 to the mounting base 1, thus realizing the fixed installation of the locking pin 202.

[0049] When bending and installing the fixing part 2, firstly, one of the mounting seats 201 is fixedly installed on the mounting base 1. Then, the other mounting seat 201 is pulled. At this time, both ends of the connecting seat 205 slide inside the corresponding mounting seat 201 on both sides. Then, the other mounting seat 201 is rotated 90 degrees around the connecting seat 205 as the axis, so that the locking pin 202 inside the other mounting seat 201 corresponds to the corresponding mounting hole 101. Then, the other mounting seat 201 is moved towards the corresponding mounting hole 101, so that the locking pin 202 is inserted into the corresponding mounting hole 101 and the corresponding rotating handle 204 is rotated to open the locking pin 202 and fix it inside the corresponding mounting hole 101. Thus, the bending and fixing of the fixing part 2 is achieved, which improves the installation flexibility of the fixing part 2.

[0050] Then the docking part 4 is inserted into the upper part of the corresponding mounting base 201. When the docking part 4 is installed on the upper part of the mounting base 201, the docking part 4 can self-lock on the upper part of the mounting base 201.

[0051] At the same time, simply pulling the handle 404 will release the lock between the docking part 4 and the mounting base 201, enabling convenient installation of the docking part 4 and improving the efficiency of installation and disassembly of the docking part 4.

[0052] Meanwhile, the upper part of the docking part 4 can be equipped with various devices, not limited to the clamping part 3, so that the installation of the devices can be assembled according to the specific needs of automotive parts, realizing the overall flexibility of the device.

[0053] Then, the clamping part 3 is fixed to the required position on the upper part of the mating part 4 with bolts. The clamping part 3 can controllably clamp and fix the corresponding automotive parts to avoid excessive clamping pressure damaging the automotive parts, and excessive clamping pressure causing instability in the processing of automotive parts.

[0054] Please see Figure 1 As shown, the upper part and the side of the mounting base 1 are provided with mounting holes 101 arranged in a grid. The mounting holes 101 cooperate with the lower end of the locking pin 202. The locking pin 202 can be positioned and installed at multiple points through multiple mounting holes 101, thereby improving the installation flexibility of the fixing part 2.

[0055] Please see Figure 4 , Figure 6 , Figure 7 and Figure 10 As shown, the lower end of the locking pin 202 is provided with a bevel, which cooperates with the mounting hole 101. The bevel can provide guidance when the locking pin 202 is inserted into the mounting hole 101, improving the accuracy of the installation of the locking pin 202. At the same time, when the locking pin 202 opens, it can also squeeze the mounting hole 101 through the bevel, causing the entire locking pin 202 to move downward, which in turn causes the mounting base 201 to move downward, increasing the contact firmness between the mounting base 201 and the mounting base 1.

[0056] Please see Figure 7 and Figure 10 As shown, the threads on the outer edges of the two ends of the compression bolt 203 are opposite, so that the rotation of the compression bolt 203 drives the locking pin 202 connected by the threads at both ends to open and close, thereby realizing the locking pin 202 locking and separating inside the mounting hole 101.

[0057] Please see Figure 6 , Figure 7 and Figure 10 As shown, the connecting seat 205 consists of a rotating seat 2051, a rotating arm 2052, and a rotating pin 2053. The inner side of one end of the rotating seat 2051 is slidably connected to the inner sides of the mounting seat 201. The rotating arm 2052 is rotatably connected to the other end of the rotating seat 2051. The inner side of the rotating arm 2052 is slidably connected to the inner sides of the other mounting seat 201. The rotating pin 2053 is located at the position where the rotating seat 2051 and the rotating arm 2052 are rotatably connected. When the mounting seat 201 needs to be bent, the two mounting seats 201 need to be slid apart inside the rotating seat 2051 and the rotating arm 2052 to provide space for the bending of the mounting seat 201. When the fixing part 2 is in a bent state, the mounting seats 201 are connected by the connecting seat 205, which can limit the mutual positioning between the two mounting seats 201, prevent the mounting seats 201 from rotating and causing loosening, and improve the stability of the mounting seat 201.

[0058] Please see Figure 8 As shown, the docking part 4 includes a docking seat 401, a limiting ridge 402, a locking block 403, a pull handle 404, and an elastic reset member 405. The inner side of the docking seat 401 cooperates with the upper part of the mounting seat 201. The limiting ridge 402 is fixedly disposed on the inner side of the docking seat 401 and can be inserted into the interior of the mounting seat 201. There are two locking blocks 403, which are slidably disposed on the interior of both sides of the docking seat 401. The locking blocks 403 cooperate with the two ends of the rotating pin 2053. One end of the pull handle 404 is fixedly connected to one end of the locking block 403. The elastic reset member 405 is disposed between the locking block 403 and the docking seat 401.

[0059] The docking seat 401 has multiple mounting slots inside, which allow various required devices to be installed at the docking seat 401, improving the flexibility of equipment use.

[0060] When the docking seat 401 is installed on the upper part of the mounting seat 201, the limiting ridge 402 is inserted into the interior of the mounting seat 201 to provide lateral limiting support for the docking seat 401 and prevent the docking seat 401 from rotating under force when the mounting seat 201 is in a bent state.

[0061] The mounting base 201 has two mounting grooves on both sides that cooperate with the limiting ridge 402, so that the mounting base 201 can provide a limit for the limiting ridge 402 when it is in a horizontal or bent state.

[0062] Simultaneously, as the docking seat 401 moves, the locking block 403 retracts into the interior of the docking seat 401 upon contact with the rotating pin 2053, until the docking seat 401 is completely inserted into the interior of the mounting seat 201. At this time, the rotating pin 2053 is at the upper end of the locking block 403. The locking block 403 is then extended by the elastic compression of the elastic reset member 405, which limits and locks the rotating pin 2053 inside the docking seat 401, thus completing the fixation between the docking seat 401 and the mounting seat 201.

[0063] At this time, the docking seat 401 is double-limited by the limiting ridge 402 and the rotating pin 2053, which can further ensure the stability of the docking seat 401 installed at the mounting seat 201;

[0064] When it is necessary to remove the docking seat 401, simply pull the handle 404 to retract the locking block 403 into the interior of the docking seat 401. At this time, the locking block 403 releases the lock on the rotating pin 2053.

[0065] Please see Figure 4 and Figure 5As shown, locking grooves are provided inside both sides of the docking seat 401. The locking grooves cooperate with the two ends of the rotating pin 2053. The lower part of one end of the locking block 403 is set as an inclined surface, which also cooperates with the two ends of the rotating pin 2053. Through the inclined surface, the inclined surface can contact the outer edge of the rotating pin 2053 during the downward movement of the locking block 403, so that the locking block 403 can be more conveniently and effortlessly retracted into the interior of the docking seat 401 under the pressure of the inclined surface, thereby realizing the convenient locking of the locking block 403 on the rotating pin 2053.

[0066] Please see Figures 2 to 5 as well as Figure 9 , Figure 10 As shown, the clamping part 3 includes a clamping base 301, a drive motor 302, a drive screw 303, a drive block 304, a support base 305, a sliding base 306, a pressure sensor 307, and an elastic pressing member 308. The lower end of the clamping base 301 is fixed to the interior of the docking seat 401 by bolts. The drive motor 302 is fixedly connected to the interior of the clamping base 301. The drive screw 303 is rotatably disposed inside the clamping base 301, and one end of the drive screw 303 is fixedly connected to the output end of the drive motor 302. The drive block 304 is threaded to the outer edge of the drive screw 303 at its lower end. The drive block 304 is slidably connected to the inside of the clamping base 301. The support base 305 is fixedly connected to the upper end of the clamping base 301. One end of the sliding seat 306 is slidably connected to the inside of the upper end of the drive block 304, and the sliding seat 306 corresponds to the support base 305. The pressure sensor 307 is fixedly connected to the inside of the drive block 304. The elastic extrusion member 308 is disposed between the sliding seat 306 and the pressure sensor 307.

[0067] The drive screw 303 is rotated by the output of the drive motor 302. The rotation of the drive screw 303 causes the drive block 304, which is threadedly connected to it, to move, thus installing the automotive part on the support seat 305. The drive block 304 drives the sliding seat 306 to move towards the support seat 305 until the sliding seat 306 contacts the automotive part. At this time, the drive block 304 continues to move and compress the elastic extrusion member 308 and the pressure sensor 307. The sliding seat 306 slides inside the drive block 304. By monitoring the pressure data of the elastic extrusion member 308 fed back by the pressure sensor 307, the clamping pressure is monitored. At the same time, the movement and compression of the drive block 304 can adjust the pressure applied by the elastic extrusion member 308 to the sliding seat 306, thereby adjusting the clamping pressure between the sliding seat 306 and the support seat 305.

[0068] Please see Figures 2 to 5 as well as Figure 9 , Figure 10As shown, rubber blocks are fixedly provided on the corresponding sides of the sliding seat 306 and the support seat 305. The rubber blocks make the sliding seat 306, the support seat 305 and the automobile parts in flexible contact, which can prevent the clamping pressure of the sliding seat 306 and the support seat 305 from deforming the automobile parts and affecting the quality of the automobile parts.

[0069] A clamping method for machining automotive parts, applied to the aforementioned pressure-adjustable clamp, includes the following steps;

[0070] Step 1: Install the fixing part 2 horizontally or bend it to install it on the upper part or side of the mounting base 1 according to the clamping requirements of the automotive parts;

[0071] Step 2: Then, by rotating the handle 204, the locking pin 202 is opened inside the mounting hole 101, so that the fixing part 2 is fixed to the mounting base 1.

[0072] Step 3: Then, insert the docking part 4 into the upper part of the corresponding mounting base 201, so that the docking part 4 self-locks in the upper part of the mounting base 201.

[0073] Step 4: Then, fix the clamping part 3 to the required position on the upper part of the mating part 4 using bolts;

[0074] Step 5: The clamping part 3 is used to clamp and fix the automotive parts.

[0075] The working principle of this invention is as follows: According to the clamping requirements of the automotive parts, the fixing part 2 is horizontally installed or bent and installed on the upper part or side of the mounting base 1. Then, by rotating the handle 204, the locking pin 202 is opened inside the mounting hole 101 and comes into contact with the inside of the mounting hole 101. At this time, the locking pin 202 fixes the mounting base 201 to the mounting base 1, thereby realizing the fixed installation of the locking pin 202.

[0076] When bending and installing the fixing part 2, firstly, one of the mounting seats 201 is fixedly installed on the mounting base 1. Then, the other mounting seat 201 is pulled. At this time, both ends of the connecting seat 205 slide inside the corresponding mounting seat 201 on both sides. Then, the other mounting seat 201 is rotated 90 degrees around the connecting seat 205 as the axis, so that the locking pin 202 inside the other mounting seat 201 corresponds to the corresponding mounting hole 101. Then, the other mounting seat 201 is moved towards the corresponding mounting hole 101, so that the locking pin 202 is inserted into the corresponding mounting hole 101 and the corresponding rotating handle 204 is rotated to open the locking pin 202 and fix it inside the corresponding mounting hole 101. Thus, the bending and fixing of the fixing part 2 is achieved, which improves the installation flexibility of the fixing part 2.

[0077] Then the docking part 4 is inserted into the upper part of the corresponding mounting base 201. When the docking part 4 is installed on the upper part of the mounting base 201, the docking part 4 can self-lock on the upper part of the mounting base 201.

[0078] At the same time, simply pulling the handle 404 will release the lock between the docking part 4 and the mounting base 201, enabling convenient installation of the docking part 4 and improving the efficiency of installation and disassembly of the docking part 4.

[0079] Meanwhile, the upper part of the docking part 4 can be equipped with various devices, not limited to the clamping part 3, so that the installation of the devices can be assembled according to the specific needs of automotive parts, realizing the overall flexibility of the device.

[0080] Then, the clamping part 3 is fixed to the required position on the upper part of the mating part 4 with bolts. The clamping part 3 can controllably clamp and fix the corresponding automotive parts to avoid excessive clamping pressure damaging the automotive parts, and excessive clamping pressure causing instability in the processing of automotive parts.

[0081] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A clamp based on pressure regulation, characterized in that: Includes a mounting base, the upper part of which is provided with a fixing part, the fixing part being able to be inserted into and fixed to the upper part of the mounting base and bent and disposed on the side of the mounting base; The upper part of the fixing part is provided with a docking part, and various devices can be fixedly installed on the upper part of the docking part. The docking part can be easily disassembled and assembled on the upper part of the fixing part, improving the flexibility of assembly. The upper part of the docking part is connected to a clamping part by bolts. The clamping part can clamp and fix the car parts, and can also monitor the clamping pressure to avoid excessive pressure and failure to clamp. The fixing part includes a mounting base, a locking pin, a clamping bolt, a rotating handle, and a connecting seat. There are two mounting bases, the lower parts of which are in contact with the upper part of the mounting base. There are two locking pins, which are slidably disposed inside one mounting base. The clamping bolt is rotatably disposed inside the mounting base, and the outer edge of the clamping bolt is threadedly connected to the two corresponding locking pins. The center of the rotating handle is fixedly connected to one end of the clamping bolt. The connecting seat is disposed between the two mounting bases, and the two ends of the connecting seat are slidably connected to the interior of the two sides of the mounting base.

2. The clamp based on pressure regulation according to claim 1, characterized in that: The mounting base has mounting holes arranged in a grid pattern on its upper part and sides, and the mounting holes cooperate with the lower end of the locking pin.

3. A clamp based on pressure regulation according to claim 1, characterized in that: The lower end of the locking pin is provided with an inclined surface, which mates with the mounting hole.

4. A pressure-adjustable clamp according to claim 1, characterized in that: The threads on the outer edges of the two ends of the extrusion bolt are opposite.

5. A clamp based on pressure regulation according to claim 1, characterized in that: The connecting seat consists of a rotating seat, a rotating arm, and a rotating pin. The inner side of one end of the rotating seat is slidably connected to the interior of both sides of the mounting seat. The rotating arm is rotatably connected to the other end of the rotating seat. The inner side of the rotating arm is slidably connected to the interior of both sides of the other mounting seat. The rotating pin is located at the position where the rotating seat and the rotating arm are rotatably connected.

6. A clamp based on pressure regulation according to claim 1, characterized in that: The docking part includes a docking seat, a limiting ridge, a locking block, a pull handle, and an elastic reset member. The inner side of the docking seat mates with the upper part of the mounting base. The limiting ridge is fixedly disposed on the inner side of the docking seat and can be inserted into the interior of the mounting base. Two locking blocks are provided, and the two locking blocks are slidably disposed inside the two sides of the docking seat, and the locking blocks mate with the two ends of the rotating pin. One end of the pull handle is fixedly connected to one end of the locking block. The elastic reset member is disposed between the locking block and the docking seat.

7. A clamp based on pressure regulation according to claim 6, characterized in that: The docking seat has locking grooves on both sides, which cooperate with the two ends of the rotating pin. The lower part of one end of the locking block is set as an inclined surface, which also cooperates with the two ends of the rotating pin.

8. A clamp based on pressure regulation according to claim 1, characterized in that: The clamping unit includes a clamping base, a drive motor, a drive screw, a drive block, a support base, a sliding seat, a pressure sensor, and an elastic extrusion member. The lower end of the clamping base is fixed to the interior of the mating seat by bolts. The drive motor is fixedly connected to the interior of the clamping base. The drive screw is rotatably disposed inside the clamping base, and one end of the drive screw is fixedly connected to the output end of the drive motor. The interior of the lower end of the drive block is threadedly connected to the outer edge of the drive screw. The drive block is slidably connected to the interior of the clamping base. The support base is fixedly connected to the upper end of the clamping base. One end of the sliding seat is slidably connected to the interior of the upper end of the drive block, and the sliding seat corresponds to the support base. The pressure sensor is fixedly connected to the interior of the drive block. The elastic extrusion member is disposed between the sliding seat and the pressure sensor.

9. A clamp based on pressure regulation according to claim 8, characterized in that: Rubber blocks are fixedly installed on the corresponding side of the sliding seat and the support seat.

10. A clamping method for machining automotive parts, applied to a pressure-adjustable clamp as described in any one of claims 1 to 9, comprising the following steps; Step 1: Install the fixing part horizontally or bend it to install it on the upper or side of the mounting base according to the clamping requirements of the automotive parts; Step 2: Then, rotate the handle to open the locking pin inside the mounting hole, thus fixing the entire fixing part to the mounting base. Step 3: Then, insert the mating part into the upper part of the corresponding mounting base, so that the mating part self-locks into the upper part of the mounting base; Step 4: Then, fix the clamping part to the required position on the upper part of the mating part with bolts; Step 5: The clamping part is used to clamp and fix the automotive parts.

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