Plate heat exchanger plate assembling and positioning tool

Abstract

The utility model relates to the field of positioning tool devices, and discloses a plate heat exchanger plate assembling and positioning tool which comprises a base mechanism, a bottom plate mechanism, a first clamping mechanism, a second clamping mechanism, a grabbing mechanism and a driving mechanism, the base mechanism comprises a supporting base, a plurality of first limiting grooves are formed in the two sides of the inner bottom face of the supporting base, and a plurality of second limiting grooves are formed in the two sides of the inner bottom face of the supporting base; first sliding grooves are formed in the two sides of the upper surface of the supporting base. According to the device, a first clamping mechanism is arranged, a second limiting rod is lifted by pressing a first connecting block, so that a first clamping plate moves, a second limiting block is lifted by arranging a second clamping mechanism and lifting a connecting column, so that a second sliding block can move; according to the positioning tool for the sheet bar frame, the sheet bar frame is further clamped, the position of the sheet bar frame is further fixed by tightening bolts, assembling and positioning are more accurate, and the positioning tool for the sheet bar frames of different sizes can be met.

Description

Technical Field

[0001] The utility model relates to the field of positioning tooling devices, in particular to a positioning tooling for assembling plate heat exchanger plates. Background Technique

[0002] As an efficient heat exchange device, plate heat exchangers are widely used in many industrial fields. With the development of various industries, the demand for plate heat exchangers is increasing continuously, and the requirements for their performance and quality are also getting higher and higher. As the core component of the plate heat exchanger, the assembly quality of the plates will affect the heat exchange efficiency, sealing performance and service life of the heat exchanger.

[0003] When the existing positioning tooling is used for assembling and positioning the heat exchanger plates, most of them are prone to position deviation between the plates, resulting in poor sealing and affecting the heat exchange effect. In the process of large-scale production, most of them are manual assembly, with slow speed and low efficiency. Therefore, technical personnel in this field have provided a positioning tooling for assembling plate heat exchanger plates to solve the problems raised in the above background technique. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to provide a positioning tooling for assembling plate heat exchanger plates. Compared with the existing positioning tooling mechanism, through the first clamping mechanism provided, by pressing the first connecting block, the second limiting rod is lifted, so that the first clamping plate moves in position. Through the second clamping mechanism provided, the connecting column is lifted, so that the first limiting block is lifted, so that the second sliding block can move in position, and then the plate frame is clamped. By tightening the bolts, the position of the plate frame can be further fixed from above, so that the assembly and positioning are more accurate, and it can also meet the positioning tooling requirements of plate frames of different sizes and models.

[0005] To achieve the above object, the utility model provides the following technical solution:

[0006] A positioning tooling for assembling plate heat exchanger plates, comprising a base mechanism and a second clamping mechanism. The base mechanism includes a support base, and a plurality of first limiting grooves are opened on both sides of the inner bottom surface of the support base. First sliding grooves are opened on both sides of the upper surface of the support base. A bottom plate mechanism is arranged at the center of the upper surface of the base mechanism. A first clamping mechanism is arranged at the upper end of the base mechanism. The first clamping mechanism includes a first clamping plate. A first connecting block is slidably connected to the center of the upper surface of the first clamping plate. A first rectangular groove is opened at the center of the lower surface of the first connecting block. A guide rod is fixedly connected to the inner top surface of the first rectangular groove. A first spring is sleeved on the lower end of the outer wall of the guide rod. The lower surface of the guide rod is fixedly connected to a first sliding block;

[0007] The second clamping mechanism includes a second slider and a second connecting block. A connecting column is slidably connected to the middle of the upper surface of the second slider. A sixth connecting block is fixedly connected to the lower surface of the connecting column. A third connecting block is fixedly connected to the lower surface of the second connecting block. A second sliding groove is formed inside the third connecting block. A rotating rod is slidably connected to the inside of the second sliding groove. The outer wall of the upper end of the rotating rod is hingedly connected to the sixth connecting block. A second spring is fixedly connected to the inner top surface of the sixth connecting block. A first limiting block is fixedly connected to the lower surface of the third connecting block. A second clamping plate is fixedly connected to the upper end of the outer wall of the connecting column. A bolt is in threaded cooperation with the middle of the upper surface of the second clamping plate. The lower end of the outer wall of the bolt is rotatably connected to an annular groove. A driving mechanism is arranged at the upper end of the base mechanism;

[0008] A gripping mechanism is arranged at the lower end of the driving mechanism. The gripping mechanism includes a sliding housing. A guiding rod is rotatably connected to the middle of the upper surface of the sliding housing. A second rectangular groove is formed in the lower surface of the sliding housing. A first electric telescopic rod is fixedly connected to the upper end of the inner wall of the second rectangular groove. A fourth connecting block is fixedly connected to the lower surface of the first electric telescopic rod. A fifth connecting block is fixedly connected to the upper end of the inner wall of the fourth connecting block. A second electric telescopic rod is fixedly connected to the lower surface of the fifth connecting block. A first connecting bearing is fixedly connected to the lower surface of the second electric telescopic rod. Second connecting bearings are rotatably connected to the lower ends of the two inner walls on both sides of the fourth connecting block. A gripper is rotatably connected to the outer wall of the second connecting bearing;

[0009] Through the above technical solutions, the flexible adjustment of the first clamping mechanism and the second clamping mechanism can make the assembly positioning more accurate, and can also meet the positioning and installation of plate frames of different sizes and models. The flexible adjustment of the driving mechanism and the gripping mechanism can realize automatic assembly, thus saving manpower and improving efficiency.

[0010] Furthermore, the base plate mechanism includes a connecting base plate. A first chamber is formed at the center of the inside of the connecting base plate. A third sliding groove is formed in the inner bottom surface of the first chamber. A plurality of limiting holes are formed in the inner walls on both sides of the first chamber. Pad plates are fixedly connected to both ends of the upper surface of the connecting base plate. A plate frame is placed on the upper surface of the pad plates;

[0011] Through the above technical solutions, pad plates are fixedly connected to both ends of the upper surface of the connecting base plate, and a plate frame is placed on the upper surface of the pad plates, so as to effectively protect the plate frame and avoid abrasion.

[0012] Furthermore, the lower surface of the second spring is fixedly connected to the third connecting block;

[0013] Through the above technical solutions, the lower surface of the second spring is fixedly connected to the third connecting block, so as to indirectly drive the first limiting block to slide up and down.

[0014] Further, a second chamber is provided inside the sixth connecting block, and a second limiting groove is provided at the upper end of the second chamber;

[0015] Through the above technical solution, since a second chamber is provided inside the sixth connecting block and a second limiting groove is provided at the upper end of the second chamber, the second spring can connect the sixth connecting block and the third connecting block.

[0016] Further, the lower end of the outer wall of the first limiting block is slidably connected to the first limiting groove;

[0017] Through the above technical solution, since the lower end of the outer wall of the first limiting block is slidably connected to the first limiting groove, the second clamping mechanism can be fixed at any position in the first sliding groove.

[0018] Further, the driving mechanism includes a bracket. A third chamber is provided at the upper end inside the bracket. A servo motor is fixedly connected to the inner bottom surface of the third chamber. The output end of the servo motor is fixedly connected to a reciprocating lead screw. A second limiting block is fixedly connected to one end of the reciprocating lead screw close to the servo motor;

[0019] Through the above technical solution, since a second limiting block is fixedly connected to one end of the reciprocating lead screw close to the servo motor, the grasping mechanism can immediately return when it reaches a predetermined position, saving time.

[0020] Further, the first connecting bearing is rotatably connected to the gripper, and the second connecting bearing is fixedly connected to the fourth connecting block;

[0021] Through the above technical solution, since the first connecting bearing is rotatably connected to the gripper and the second connecting bearing is fixedly connected to the fourth connecting block, the gripper can be synchronously opened when the second electric telescopic rod descends.

[0022] Further, first limiting rods are fixedly connected to the inner walls on both sides of the connecting bottom plate, and a second limiting rod is rotatably connected to the middle of the outer wall of the guide rod;

[0023] Through the above technical solution, since first limiting rods are fixedly connected to the inner walls on both sides of the connecting bottom plate and a second limiting rod is rotatably connected to the middle of the outer wall of the guide rod, the second limiting rod can be taken out of the limiting hole and kept at an appropriate distance when pressing the first connecting block.

[0024] The utility model has the following beneficial effects:

[0025] 1. The utility model proposes a plate heat exchanger plate assembly positioning fixture. Compared with the existing positioning fixture mechanism, the positioning fixture mechanism uses a first clamping mechanism to press the first connecting block to lift the second limit rod, thereby moving the first clamping plate. The second clamping mechanism is used to lift the connecting column to lift the first limit block, so that the second slider can move the position, and then clamp the plate frame. By tightening the bolts, the plate frame can be further fixed from above, thereby making the assembly positioning more accurate and meeting the positioning tooling needs of plate frames of different sizes and models.

[0026] 2. The utility model proposes a plate heat exchanger plate assembly positioning tool. Compared with the existing positioning tool mechanism, the positioning tool mechanism uses a set driving mechanism to drive the reciprocating screw to rotate through a servo motor, so that the grasping mechanism on the screw performs reciprocating motion. Through the set grasping mechanism, the height of the grasping mechanism can be adjusted by the first electric telescopic rod, and the heat exchange plate can be grasped and lowered by the second electric telescopic rod, thereby realizing automatic assembly, saving manpower and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is an axonometric drawing of a plate heat exchanger plate assembly and positioning tool proposed in the utility model;

[0028] Figure 2 This is a side sectional view of a plate heat exchanger plate assembly and positioning tool proposed by the utility model;

[0029] Figure 3 This is a cross-sectional view of the second clamping mechanism of a plate assembly and positioning tool for a plate heat exchanger proposed in the utility model;

[0030] Figure 4 This is a cross-sectional view of the first clamping mechanism of a plate assembly and positioning tool for a plate heat exchanger proposed in the utility model;

[0031] Figure 5 This is an axonometric view of the second limiting rod in the plate assembly and positioning tooling for a plate heat exchanger proposed in the utility model;

[0032] Figure 6 This is a structural diagram of a plate heat exchanger plate assembly positioning fixture drive mechanism proposed by the utility model;

[0033] Figure 7 This is an enlarged view of a plate assembly and positioning tooling gripper for a plate heat exchanger proposed in the utility model.

[0034] Legend:

[0035] 1. Base mechanism; 101. First limiting groove; 102. First sliding groove; 103. Support base; 2. Bottom plate mechanism; 201. Cushion plate; 202. Limiting hole; 203. Connecting bottom plate; 204. First chamber; 205. Third sliding groove; 3. First clamping mechanism; 301. First clamping plate; 302. First connecting block; 303. Guide rod; 304. First limiting rod; 305. Second limiting rod; 306. First spring; 307. First slider; 308. First rectangular groove; 4. Plate frame; 5. Second clamping mechanism; 501. Bolt; 502. Second clamping plate; 503. Connecting column; 504. Second connecting block; 505. Second chamber; 506. Third connecting block; 507. First limiting block; 508. Second limiting groove; 509. Second sliding groove; 5010. Rotating rod; 511. Second spring; 512. Second slider; 513. Ring groove; 514. Sixth connecting block; 6. Grabbing mechanism; 601. Sliding housing; 602. Guide rod; 603. First electric telescopic rod; 604. Second rectangular groove; 605. Fifth connecting block; 606. Second electric telescopic rod; 607. First connecting bearing; 608. Grab; 609. Second connecting bearing; 610. Fourth connecting block; 7. Driving mechanism; 701. Bracket; 702. Second limiting block; 703. Servo motor; 704. Third chamber; 705. Reciprocating lead screw. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Refer to Figure 1-7 , an embodiment provided by the present invention:

[0038] A plate heat exchanger plate assembly positioning tooling, including a base mechanism 1 and a second clamping mechanism 5. The base mechanism 1 includes a support base 103. On both sides of the inner bottom surface of the support base 103, a plurality of first limit grooves 101 are provided. On both sides of the upper surface of the support base 103, first sliding grooves 102 are provided. At the center of the upper surface of the base mechanism 1, a bottom plate mechanism 2 is provided. At the upper end of the base mechanism 1, a first clamping mechanism 3 is provided. The first clamping mechanism 3 includes a first clamping plate 301. At the center of the upper surface of the first clamping plate 301, a first connecting block 302 is slidably connected. At the center of the lower surface of the first connecting block 302, a first rectangular groove 308 is provided. At the inner top surface of the first rectangular groove 308, a guide rod 303 is fixedly connected. At the lower end of the outer wall of the guide rod 303, a first spring 306 is sleeved. At the lower surface of the guide rod 303, a first slider 307 is fixedly connected. The second clamping mechanism 5 includes a second slider 512 and a second connecting block 504. At the middle of the upper surface of the second slider 512, a connecting column 503 is slidably connected. At the lower surface of the connecting column 503, a sixth connecting block 514 is fixedly connected. At the lower surface of the second connecting block 504, a third connecting block 506 is fixedly connected. Inside the third connecting block 506, a second sliding groove 509 is provided. Inside the second sliding groove 509, a rotating rod 5010 is slidably connected. The outer wall of the upper end of the rotating rod 5010 is hinged to the sixth connecting block 514. At the inner top surface of the sixth connecting block 514, a second spring 511 is fixedly connected. At the lower surface of the third connecting block 506, a first limit block 507 is fixedly connected. At the upper end of the outer wall of the connecting column 503, a second clamping plate 502 is fixedly connected. At the middle of the upper surface of the second clamping plate 502, a bolt 501 is in threaded cooperation. At the lower end of the outer wall of the bolt 501, a ring groove 513 is rotatably connected. At the upper end of the base mechanism 1, a driving mechanism 7 is provided;

[0039] At the lower end of the driving mechanism 7, a grasping mechanism 6 is provided. The grasping mechanism 6 includes a sliding housing 601. At the middle of the upper surface of the sliding housing 601, a guide rod 602 is rotatably connected. At the lower surface of the sliding housing 601, a second rectangular groove 604 is provided. At the upper end of the inner wall of the second rectangular groove 604, a first electric telescopic rod 603 is fixedly connected. At the lower surface of the first electric telescopic rod 603, a fourth connecting block 610 is fixedly connected. At the upper end of the inner wall of the fourth connecting block 610, a fifth connecting block 605 is fixedly connected. At the lower surface of the fifth connecting block 605, a second electric telescopic rod 606 is fixedly connected. At the lower surface of the second electric telescopic rod 606, a first connecting bearing 607 is fixedly connected. At the lower ends of both inner walls of the fourth connecting block 610, second connecting bearings 609 are rotatably connected. The outer wall of the second connecting bearing 609 is rotatably connected to a gripper 608;

[0040] The flexible adjustment of the first clamping mechanism 3 and the second clamping mechanism 5 can make the assembly positioning more accurate, and can also meet the positioning and installation of plate frames 4 of different sizes and models. The flexible adjustment of the driving mechanism 7 and the grasping mechanism 6 can achieve automatic assembly, thus saving manpower and improving efficiency.

[0041] The bottom plate mechanism 2 includes a connecting bottom plate 203. A first chamber 204 is opened at the center inside the connecting bottom plate 203. A third chute 205 is opened on the inner bottom surface of the first chamber 204. A plurality of limiting holes 202 are opened on the inner walls on both sides of the first chamber 204. Both ends of the upper surface of the connecting bottom plate 203 are fixedly connected with cushion plates 201. A plate frame 4 is placed on the upper surfaces of the cushion plates 201. By fixedly connecting both ends of the upper surface of the connecting bottom plate 203 with cushion plates 201 and placing a plate frame 4 on the upper surfaces of the cushion plates 201, the plate frame 4 can be effectively protected from wear. The lower surface of the second spring 511 is fixedly connected with the third connecting block 506. By fixedly connecting the lower surface of the second spring 511 with the third connecting block 506, the first limiting block 507 can be indirectly driven to slide up and down. A second chamber 505 is opened inside the sixth connecting block 514. A second limiting groove 508 is opened at the upper end of the second chamber 505. By opening a second chamber 505 inside the sixth connecting block 514 and opening a second limiting groove 508 at the upper end of the second chamber 505, the second spring 511 can connect the sixth connecting block 514 and the third connecting block 506.

[0042] The lower end of the outer wall of the first limiting block 507 is slidably connected with the first limiting groove 101. By slidably connecting the lower end of the outer wall of the first limiting block 507 with the first limiting groove 101, the second clamping mechanism 5 can be fixed at any position in the first chute 102. The driving mechanism 7 includes a bracket 701. A third chamber 704 is opened at the upper end inside the bracket 701. A servo motor 703 is fixedly connected to the inner bottom surface of the third chamber 704. The output end of the servo motor 703 is fixedly connected with a reciprocating lead screw 705. A second limiting block 702 is fixedly connected to one end of the reciprocating lead screw 705 close to the servo motor 703. By fixedly connecting a second limiting block 702 to one end of the reciprocating lead screw 705 close to the servo motor 703, the grasping mechanism 6 can immediately return when it reaches the predetermined position, saving time.

[0043] The first connecting bearing 607 is rotatably connected to the gripper 608, and the second connecting bearing 609 is fixedly connected to the fourth connecting block 610. By the first connecting bearing 607 being rotatably connected to the gripper 608 and the second connecting bearing 609 being fixedly connected to the fourth connecting block 610, when the second electric telescopic rod 606 descends, the gripper 608 can be synchronously opened. On both sides of the inner wall of the connecting bottom plate 203, a first limiting rod 304 is fixedly connected, and in the middle of the outer wall of the guide rod 303, a second limiting rod 305 is rotatably connected. By the first limiting rod 304 being fixedly connected to both sides of the inner wall of the connecting bottom plate 203 and the second limiting rod 305 being rotatably connected to the middle of the outer wall of the guide rod 303, when the first connecting block 302 is pressed, the second limiting rod 305 can be taken out of the limiting hole 202 and maintain an appropriate distance.

[0044] Working principle: When in use, by pressing the first connecting block 302, the guide rod 303 drives the first spring 306 to press down, so that the second limiting rod 305 is lifted. The first slider 307 at the bottom of the guide rod 303 can drive the first clamping mechanism 3 as a whole to move in position. When the first connecting block 302 is released, the first spring 306 returns to its original shape, and the second limiting rod 305 is inserted into the limiting hole 202 to clamp the plate frame 4. By lifting and then releasing the connecting column 503, the rotating rod 5010, when it slides to the bottom in the second chute 509, the second spring 511 pulls the third connecting block 506 as a whole upward. At this time, the first limiting block 507 leaves the first limiting groove 101, and position adjustment can be carried out. When the connecting column 503 is lifted and then released again, the rotating rod 5010 returns to the vertex, and at the same time, the first limiting block 507 returns to the first limiting groove 101 to clamp the plate frame 4. By tightening the bolt 501, the plate frame 4 can also be pressed from above. By starting the servo motor 703, the grasping mechanism 6 makes a reciprocating motion on the reciprocating screw rod 705. By controlling the first electric telescopic rod 603, the height between the grasping mechanism 6 and the plate frame 4 can be adjusted. By controlling the second electric telescopic rod 606 to descend, the gripper 608 opens. When the second electric telescopic rod 606 is lifted, the gripper 608 tightens, so that the heat exchange plates can be automatically grasped and placed.

[0045] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A plate assembly positioning tool for a plate heat exchanger, comprising a base mechanism (1) and a second clamping mechanism (5), characterized in that: The base mechanism (1) includes a support base (103). On both sides of the inner bottom surface of the support base (103), a plurality of first limiting grooves (101) are provided. On both sides of the upper surface of the support base (103), first sliding grooves (102) are provided. At the center of the upper surface of the base mechanism (1), a bottom plate mechanism (2) is provided. At the upper end of the base mechanism (1), a first clamping mechanism (3) is provided. The first clamping mechanism (3) includes a first clamping plate (301). At the center of the upper surface of the first clamping plate (301), a first connecting block (302) is slidably connected. At the center of the lower surface of the first connecting block (302), a first rectangular groove (308) is provided. At the inner top surface of the first rectangular groove (308), a guide rod (303) is fixedly connected. At the lower end of the outer wall of the guide rod (303), a first spring (306) is sleeved. At the lower surface of the guide rod (303), a first slider (307) is fixedly connected; The second clamping mechanism (5) includes a second slider (512) and a second connecting block (504). At the middle of the upper surface of the second slider (512), a connecting column (503) is slidably connected. At the lower surface of the connecting column (503), a sixth connecting block (514) is fixedly connected. At the lower surface of the second connecting block (504), a third connecting block (506) is fixedly connected. Inside the third connecting block (506), a second sliding groove (509) is provided. Inside the second sliding groove (509), a rotating rod (5010) is slidably connected. The outer wall of the upper end of the rotating rod (5010) is hinged to the sixth connecting block (514). At the inner top surface of the sixth connecting block (514), a second spring (511) is fixedly connected. At the lower surface of the third connecting block (506), a first limiting block (507) is fixedly connected. At the upper end of the outer wall of the connecting column (503), a second clamping plate (502) is fixedly connected. At the middle of the upper surface of the second clamping plate (502), a bolt (501) is in threaded cooperation. At the lower end of the outer wall of the bolt (501), a ring groove (513) is rotatably connected. At the upper end of the base mechanism (1), a driving mechanism (7) is provided; A grasping mechanism (6) is provided at the lower end of the driving mechanism (7). The grasping mechanism (6) includes a sliding housing (601). A guiding rod (602) is rotatably connected to the middle of the upper surface of the sliding housing (601). A second rectangular groove (604) is formed in the lower surface of the sliding housing (601). A first electric telescopic rod (603) is fixedly connected to the upper end of the inner wall of the second rectangular groove (604). A fourth connecting block (610) is fixedly connected to the lower surface of the first electric telescopic rod (603). A fifth connecting block (605) is fixedly connected to the upper end of the inner wall of the fourth connecting block (610). A second electric telescopic rod (606) is fixedly connected to the lower surface of the fifth connecting block (605). A first connecting bearing (607) is fixedly connected to the lower surface of the second electric telescopic rod (606). Second connecting bearings (609) are rotatably connected to the lower ends of the inner walls on both sides of the fourth connecting block (610). A gripper (608) is rotatably connected to the outer wall of the second connecting bearing (609).

2. The plate assembly positioning tooling for a plate heat exchanger according to claim 1, characterized in that: The bottom plate mechanism (2) includes a connecting bottom plate (203). A first chamber (204) is formed at the center of the inside of the connecting bottom plate (203). A third sliding groove (205) is formed in the inner bottom surface of the first chamber (204). A plurality of limiting holes (202) are formed in the inner walls on both sides of the first chamber (204). Cushion plates (201) are fixedly connected to both ends of the upper surface of the connecting bottom plate (203). A plate frame (4) is placed on the upper surface of the cushion plate (201).

3. A plate heat exchanger plate assembly positioning tool according to claim 1, characterized in that: The lower surface of the second spring (511) is fixedly connected to the third connecting block (506).

4. A plate heat exchanger plate assembly positioning tooling according to claim 1, characterized in that: A second chamber (505) is formed inside the sixth connecting block (514). A second limiting groove (508) is formed at the upper end of the second chamber (505).

5. A plate assembly positioning tooling for a plate heat exchanger according to claim 1, characterized in that: The lower end of the outer wall of the first limiting block (507) is slidably connected to the first limiting groove (101).

6. The plate assembly positioning tooling for a plate heat exchanger according to claim 1, characterized in that: The driving mechanism (7) includes a bracket (701). A third chamber (704) is formed at the upper end of the inside of the bracket (701). A servo motor (703) is fixedly connected to the inner bottom surface of the third chamber (704). A reciprocating lead screw (705) is fixedly connected to the output end of the servo motor (703). A second limiting block (702) is fixedly connected to one end of the reciprocating lead screw (705) close to the servo motor (703).

7. A plate heat exchanger plate assembly positioning tooling according to claim 1, characterized in that: The first connecting bearing (607) is rotatably connected to the gripper (608), and the second connecting bearing (609) is fixedly connected to the fourth connecting block (610).

8. A plate heat exchanger plate assembly positioning tooling according to claim 2, characterized in that: First limiting rods (304) are fixedly connected to the inner walls on both sides of the connecting bottom plate (203). A second limiting rod (305) is rotatably connected to the middle of the outer wall of the guiding rod (303).

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