Semi-automatic lining plate butt-welding machine

Abstract

The invention discloses a semi-automatic lining plate butt-welding machine, relates to the technical field of butt-welding machines, and aims to solve the problems that a welding head at a welding position is adhered to a lining plate due to contact between the welding head and the lining plate, and the lining plate is pulled and damaged due to adhesion when the welding head is lifted. According to the semi-automatic lining plate butt-welding machine, a side pressing block is matched with an inner cushion block, a lining plate and a mother plate are pressed tightly before welding, the lining plate and the mother plate are made to be attached tightly, pseudo soldering caused by low attaching degree during welding is avoided, meanwhile, after welding is completed, the lining plate and the mother plate continue to be pressed tightly when a pressure welding head is lifted through deformation compression of an elastic cushion block, and the welding efficiency is improved. The lining plate is prevented from being damaged due to the fact that the lining plate is pulled along with the movement of the welding head when adhesion occurs at the contact position of the welding head and the lining plate.

Description

Technical Field

[0001] The invention relates to the technical field of butt welding machines, in particular to a semi-automatic lining plate butt welding machine. Background Art

[0002] At present, in various types of machinery and equipment, linings can protect the main parts of the equipment from wear, corrosion and impact. For example, in a crusher, the lining is installed on the inner wall of the crushing chamber. The material continuously impacts and rubs the lining during the crushing process, thereby protecting the crusher's chamber structure, extending the overall service life of the equipment, and reducing maintenance costs. The work of the welding machine is based on the principle of resistance thermal effect. When current passes through two welded parts in contact with each other, resistance is generated at the contact point. The current overcomes the resistance and does work, converting electrical energy into heat energy, causing the metal at the contact point to quickly heat up to a molten state, forming a molten core. Under the continuous action of pressure, the molten core cools and solidifies, and then the two welded parts are firmly connected together;

[0003] During welding, due to the contact between the welding head and the lining plate, the welding head at the welding position adheres to the lining plate. When the welding head is lifted, the lining plate is pulled and damaged due to the adhesion. Summary of the invention

[0004] To achieve the above purpose, the present invention is implemented by the following technical scheme: a semi-automatic lining plate welding machine, comprising:

[0005] A frame, a support plate is fixedly installed on the top of the frame, a conductive head is fixedly installed at the center of the top of the support plate, and first cylinders are fixedly installed on both sides of the frame;

[0006] A pressure welding mechanism, which is slidably mounted inside the frame, and both ends of the pressure welding mechanism are fixedly connected to the output end of the first cylinder;

[0007] A clamping mechanism, which is symmetrically mounted on both sides of the top of the support plate, a support mechanism is fixedly mounted between the clamping mechanisms, and the support mechanism is located directly below the pressure welding mechanism;

[0008] The top of the inner plate is fixedly connected with an elastic pad, and the top of the elastic pad contacts with the top of the inner wall of the connecting frame, and a side pressure block is fixedly installed at the bottom of the inner plate, and the side pressure block cooperates with the inner pressure block to press the lining plate and the mother plate tightly before welding, so as to avoid poor fitting during welding and causing cold welding. At the same time, after welding is completed, the deformation pressure of the elastic pad causes the pressure welding head to be lifted, and the lining plate and the mother plate are continued to be pressed tightly, so as to prevent adhesion at the contact position between the welding head and the lining plate, causing the lining plate to be pulled as the welding head moves, thereby causing damage to the lining plate. The side pressure plates are symmetrically installed along the center position of the axis of the inner plate, and the bottom end of the side pressure plates is lower than the bottom end of the pressure welding head.

[0009] Preferably, an inner pad is fixedly installed between the opposite surfaces of the side pressure blocks, the bottom end of the inner pad is flush with the bottom end of the side pressure blocks, and friction patterns are provided at the bottom of the inner pad, both ends of the bottom of the top plate are fixedly connected to the output end of the first cylinder, and a side pressure plate is fixedly installed between the opposite surfaces of the side pressure blocks, and the side pressure plates are symmetrically installed along the center position of the axis of the side pressure blocks, and through the elastic deformation of the side pressure plates, they first contact with the lining plate before welding, and in the process of continuous downward movement, the bottom end of the side pressure plate moves outward and approaches the edge position of the lining plate, thereby improving the fit between the edge position of the lining plate and the mother plate, and avoiding the occurrence of cold welding between the edge position of the lining plate and the mother plate during welding, the side pressure plate is made of elastic material, and the bottom end of the side pressure block is inclined to both sides from top to bottom, and the bottom end of the side pressure block is lower than the bottom end of the inner pad.

[0010] Preferably, the supporting mechanism includes a transverse groove plate, both ends of the transverse groove plate are fixedly connected to the clamping mechanism, and the transverse groove plate is symmetrically installed along the axial center position of the supporting plate, a sliding groove is opened on the top of the transverse groove plate, and a slider is slidably installed on the inner wall of the transverse groove plate, and a bottom support plate is fixedly connected to the top of the slider, and the side of the bottom support plate close to the clamping mechanism is an inwardly concave arc surface, and the arc surface of the bottom support plate close to the clamping mechanism side, when the clamping mechanism is clamped, when the clamping mechanism contacts with the motherboard, debris is generated due to pressure, and a falling gap is provided for the falling of the debris, so as to avoid the debris piling up at the bottom of the motherboard, causing the motherboard to tilt, resulting in the deviation of the pressing angle with the lining plate, and affecting the accuracy of the welding position.

[0011] Preferably, the clamping mechanism comprises a fixing plate, the bottom of the fixing plate is fixedly connected to the top of the supporting plate, and the tops of the opposite surfaces of the fixing plate are fixedly installed with side plates, the two sides of the opposite surfaces of the side plates are fixedly connected to the two ends of the transverse groove plate, the bottoms of the side plates are fixedly installed with clamping cylinders, and the center positions of the opposite surfaces of the side plates are fixedly installed with shaft groove plates, the tops of the shaft groove plates are symmetrically provided with shaft grooves, and shaft blocks are slidably installed in the shaft grooves of the shaft groove plates, the tops of the shaft blocks are fixedly installed with slide plates, the bottoms of the slide plates are fixedly installed with convex plates, the non-opposite surfaces of the convex plates are fixedly connected to the output ends of the clamping cylinders, and the two sides of the top of the slide plates are A side inclined block is fixedly installed, the opposite surface of the side inclined block is an inclined surface, and the non-opposite surfaces of the side inclined block are fixedly installed with connecting arms, the end of the connecting arm away from the side inclined block is tilted upward, and the end of the connecting arm away from the side inclined block is rotatably connected to a pressure roller, the pressure roller is made of rubber material, and the pressure roller and the supporting mechanism are coordinated through the rubber material. In the process of pressing and fixing, the pressure rollers moving close to each other limit the motherboard by contacting at the top of the motherboard, so as to avoid the motherboard center position from bulging upward in an arc shape due to the fixing pressure when the motherboard is fixed, resulting in loose contact between the bottom of the motherboard and the conductive block, causing the motherboard to be energized during welding, resulting in welding failure.

[0012] Preferably, the non-opposite surfaces of the slide are fixedly mounted with a curved plate, the curved plate is evenly mounted on the outer side of the slide along the axial direction, and the end of the curved plate away from the slide is curved upward, the end of the curved plate away from the slide is provided with a sliding hole, and a sliding rod is slidably mounted at the sliding hole of the curved plate, and one end of the sliding rod is fixedly connected with an oblique clamping block. Through the cooperation between the oblique clamping blocks, during the clamping process, the inclined surfaces of the opposing surfaces are utilized to tilt from top to bottom to both sides to adapt to plates of different thicknesses, while reducing the contact area between the plates, reducing the resistance when the side oblique blocks adjust the position of the mother plate, cooperating with the side oblique blocks to position the plates, improving the positioning effect, and reducing damage to the plates, a spring is fixedly mounted between the oblique clamping block and the curved plate, the opposing surfaces of the oblique clamping block are inclined surfaces tilted from top to bottom to both sides, and the bottom of the oblique clamping block is evenly provided with notches, and the bottom of the oblique clamping block is flush with the top of the bottom support plate.

[0013] The present invention provides a semi-automatic lining plate welding machine. It has the following beneficial effects:

[0014] 1. The semi-automatic lining plate butt welding machine cooperates with the side pressure block and the inner pad. Before welding, the lining plate and the mother plate are pressed tightly to make them fit closely to avoid poor welding caused by low fit during welding. At the same time, after welding is completed, the elastic pad is deformed and compressed to make the pressure welding head lift up, and the lining plate and the mother plate are continued to be pressed tightly to prevent adhesion at the contact position between the welding head and the lining plate, which causes the lining plate to be pulled as the welding head moves, resulting in damage to the lining plate.

[0015] Second, the semi-automatic lining plate butt welding machine first contacts with the lining plate before welding through the elastic deformation of the side pressure plate, and in the process of continuous downward movement, the bottom end of the side pressure plate moves outward, close to the edge of the lining plate, thereby improving the fit between the edge of the lining plate and the mother plate, and avoiding the occurrence of cold welds between the edge of the lining plate and the mother plate during welding.

[0016] 3. The semi-automatic lining plate butt welding machine uses the arc surface of the bottom support plate close to the clamping mechanism. When the clamping mechanism clamps, the pressure on the clamping mechanism and the motherboard causes debris, which provides a falling gap for the debris to fall, avoiding the debris from piling up at the bottom of the motherboard, causing the motherboard to tilt, resulting in a deviation in the pressing angle with the lining plate, and affecting the accuracy of the welding position.

[0017] Fourth, the semi-automatic lining plate butt welding machine cooperates with the rubber pressure roller and the supporting mechanism. During the pressing and fixing process, the pressure rollers that move close to each other limit the motherboard by contacting at the top of the motherboard to prevent the motherboard from bulging upward in an arc shape due to the fixing pressure when the motherboard is fixed, resulting in loose contact between the bottom of the motherboard and the conductive block, causing the motherboard to be energized during welding, resulting in welding failure.

[0018] 5. The semi-automatic lining plate butt welding machine, through the cooperation between the oblique clamping blocks, utilizes the inclined surfaces that tilt from top to bottom to both sides during the clamping process to adapt to plates of different thicknesses, while reducing the contact area with the plates, reducing the resistance of the side oblique blocks when adjusting the position of the mother plate, and cooperating with the side oblique blocks to position the plates, thereby improving the positioning effect and reducing damage to the plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the external structure of a semi-automatic lining plate welding machine of the present invention;

[0020] Figure 2 This is a partial structural schematic diagram of a semi-automatic lining plate welding machine of the present invention;

[0021] Figure 3 It is a schematic diagram of the position structure of the support mechanism and the clamping mechanism of the present invention;

[0022] Figure 4 It is a schematic diagram of the supporting mechanism structure of the present invention;

[0023] Figure 5 It is a partial structural schematic diagram of the clamping mechanism of the present invention;

[0024] Figure 6 It is a side view of the partial structure of the clamping mechanism of the present invention;

[0025] Figure 7It is a schematic diagram of the structure of the pressure welding mechanism of the present invention;

[0026] Figure 8 It is a partial structural schematic diagram of the pressure welding mechanism of the present invention.

[0027] In the figure: 1, frame; 2, pressure welding mechanism; 3, clamping mechanism; 4, supporting mechanism; 5, first cylinder; 6, supporting plate; 7, conductive head; 301, clamping cylinder; 302, side plate; 303, fixed plate; 304, shaft block; 305, shaft slot plate; 306, convex plate; 307, slide plate; 308, connecting arm; 309, pressure roller; 310, side oblique block; 311, zigzag plate; 312, slide bar; 313, spring; 314, oblique clamping block; 21, connecting frame; 22, top plate; 23, pressure welding head; 24, fixed frame; 25, inner slide plate; 26, elastic pad; 27, side pressure block; 28, inner pad; 29, side pressure plate; 41, transverse slot plate; 42, slider; 43, bottom support plate. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0029] The first embodiment, as Figure 1 to Figure 2 and Figures 7 and 8 As shown, the present invention provides a technical solution: a semi-automatic lining plate welding machine, comprising:

[0030] A frame 1, a support plate 6 is fixedly mounted on the top of the frame 1, a conductive head 7 is fixedly mounted at the center of the top of the support plate 6, and first cylinders 5 are fixedly mounted on both sides of the frame 1;

[0031] A pressure welding mechanism 2, which is slidably mounted inside the frame 1, and both ends of the pressure welding mechanism 2 are fixedly connected to the output end of the first cylinder 5;

[0032] The clamping mechanism 3 is symmetrically mounted on both sides of the top of the support plate 6, and a support mechanism 4 is fixedly mounted between the clamping mechanisms 3, and the support mechanism 4 is located directly below the pressure welding mechanism 2;

[0033] The pressure welding mechanism 2 includes a top plate 22, a connection frame 21 is fixedly installed on the top of the top plate 22, a fixing frame 24 is fixedly installed on the bottom of both sides of the connection frame 21, a pressure welding head 23 is fixedly installed inside the fixing frame 24, an inner slide plate 25 is slidably installed on the inner wall of the connection frame 21, and an elastic pad 26 is fixedly connected to the top of the inner slide plate 25, the top of the elastic pad 26 contacts the top of the inner wall of the connection frame 21, and the side pressure block 27 contacts the inner pad 28 to press the liner. Tighten so that the lining plate and the motherboard are closely fitted, and in the process of continuous downward pressure, the elastic pad 26 is compressed and deformed, so that the side pressure block 27 drives the side pressure plate 29 and the inner pad 28 to move upward, and finally the welding head 23 contacts the top of the lining plate, cooperates with the contact of the conductive head 7 with the motherboard, so that the motherboard and the lining plate are energized for welding. The bottom of the inner slide plate 25 is fixedly installed with a side pressure block 27, and the side pressure block 27 is symmetrically installed along the center position of the axis of the inner slide plate 25, and the bottom end of the side pressure block 27 is lower than the bottom end of the welding head 23.

[0034] An inner pad 28 is fixedly installed between the opposite surfaces of the side pressure block 27, and the bottom end of the inner pad 28 is flush with the bottom end of the side pressure block 27, and a friction pattern is provided at the bottom of the inner pad 28. Both ends of the bottom of the top plate 22 are fixedly connected to the output end of the first cylinder 5. A side pressure plate 29 is fixedly installed between the opposite surfaces of the side pressure block 27, and the side pressure plate 29 is symmetrically installed along the center position of the axis of the side pressure block 27. The top plate 22 is driven by the first cylinder 5, so that the top plate 22 drives the connecting frame 21 to move downward. In the process of moving downward, the side pressure plate 29 first contacts the liner, and when pressure is applied to the subsequent downward movement, the side pressure plate 29 of the elastic material is deformed and bent to both sides at an angle inclined to both sides at the bottom end, and in the process of bending, it moves to both sides at the top of the liner. The side pressure plate 29 is an elastic material, and the bottom end of the side pressure plate 29 is inclined to both sides from top to bottom, and the bottom end of the side pressure plate 29 is lower than the bottom end of the inner pad 28.

[0035] The second embodiment is based on the first embodiment. Figure 3 to Figure 4 As shown, the supporting mechanism 4 includes a transverse groove plate 41, both ends of which are fixedly connected to the clamping mechanism 3, and the transverse groove plate 41 is symmetrically installed along the center position of the axis of the supporting plate 6, and the motherboard is placed on the top of the bottom support plate 43 and supported by the bottom support plate 43. Before placing it in, the slider 42 can be slidably adapted to the slide groove of the transverse groove plate 41 to adjust the position of the bottom support plates 43 on both sides so that the bottom support plates 43 are adapted to the width of the motherboard. During the clamping process, the arc surface of the non-opposite surface of the bottom support plate 43 is used to provide space for the sliding of residues and debris during the clamping process. A slide groove is provided on the top of the transverse groove plate 41, and sliders 42 are slidably installed on the inner walls of the transverse groove plate 41. The top of the slider 42 is fixedly connected to the bottom support plate 43, and the side of the bottom support plate 43 close to the clamping mechanism 3 is an inwardly concave arc surface.

[0036] The third embodiment is based on the first and second embodiments. Figure 5 to Figure 6 As shown, the clamping mechanism 3 includes a fixed plate 303, the bottom of the fixed plate 303 is fixedly connected to the top of the support plate 6, and the top of the opposite surface of the fixed plate 303 is fixedly installed with a side plate 302, the two sides of the opposite surface of the side plate 302 are fixedly connected to the two ends of the transverse groove plate 41, and the bottom of the side plate 302 is fixedly installed with a clamping cylinder 301, and the convex plate 306 is used by the clamping cylinder 301 to drive the slide plate 307 to approach the center position, and in the process of approaching, the slide plate 307 drives the oblique clamping block 314 to approach the mother plate through the zigzag plate 311 and the spring 313, and the center position of the opposite surface of the side plate 302 is fixedly installed with an axis slot plate 305, the top of the axis slot plate 305 is symmetrically provided with axis slots, and the axis blocks 304 are slidably installed in the axis slots of the axis slot plate 305.

[0037] A slide plate 307 is fixedly installed on the top of the shaft block 304, and a convex plate 306 is fixedly installed on the bottom of the slide plate 307. The non-opposite surface of the convex plate 306 is fixedly connected to the output end of the clamping cylinder 301. Side inclined blocks 310 are fixedly installed on both sides of the top of the slide plate 307. The opposite surface of the side inclined block 310 is an inclined surface, and the non-opposite surface of the side inclined block 310 is fixedly installed with a connecting arm 308. After the inclined clamping block 314 contacts the motherboard, the clamping pressure deforms the spring 313 through the inclined clamping block 314, so that the sliding rod 312 slides in the sliding hole of the flexural plate 311, so that the inclined clamping block 314 moves to both sides relative to the side inclined block 310, and the end of the connecting arm 308 away from the side inclined block 310 is tilted upward, and the end of the connecting arm 308 away from the side inclined block 310 is rotatably connected to a pressure roller 309, and the pressure roller 309 is made of rubber material.

[0038] The non-opposite surfaces of the slide plate 307 are fixedly installed with a bending plate 311, and the bending plate 311 is evenly installed on the outer side of the slide plate 307 along the axial direction, and the end of the bending plate 311 away from the slide plate 307 is bent upward, and the end of the bending plate 311 away from the slide plate 307 is provided with a sliding hole, and a sliding rod 312 is slidably installed at the sliding hole of the bending plate 311, and one end of the sliding rod 312 is fixedly connected with an oblique clamping block 314. When the oblique clamping block 314 moves to both sides, the side oblique blocks 310 approach the two side ends of the motherboard. In the process of contact, the position of the motherboard is adjusted by the inclined surface of the side oblique blocks 310, and the motherboard is driven by the inclined surfaces on both sides. It is positioned just above the support mechanism 4. During the clamping process, the connecting arms 308 are driven to approach each other through the side inclined blocks 310. During the approaching process, the pressure rollers 309 contact the two sides of the top of the motherboard, and the motherboard is pressed downward by the pressure rollers 309, cooperating with the support mechanism 4 to prevent the motherboard material from deforming and bulging during the clamping process when it is elastic. A spring 313 is fixedly installed between the inclined clamping block 314 and the curved plate 311. The opposite surface of the inclined clamping block 314 is an inclined surface inclined from top to bottom to both sides, and the bottom of the inclined clamping block 314 is evenly provided with grooves, and the bottom of the inclined clamping block 314 is flush with the top of the bottom support plate 43.

[0039] When in use, the worker places the motherboard to be welded with the lining plate on the top of the supporting mechanism 4, supports it through the supporting mechanism, and makes the bottom of the motherboard contact with the conductive head 7, then starts the clamping mechanism 3, and fixes and positions the motherboard by clamping the clamping mechanism 3 on both sides of the motherboard. Then the worker places the lining plate into the welding position, and finally drives the pressure welding mechanism 2 downward through the first cylinder 5, and contacts the lining plate through the pressure welding mechanism 2, and energizes the motherboard and the lining plate, so that welding is achieved at the contact position between the motherboard and the lining plate.

[0040] When the pressure welding mechanism 2 moves downward to contact the lining plate, the top plate 22 is driven by the first cylinder 5, so that the top plate 22 drives the connecting frame 21 to move downward. In the process of moving downward, the side pressure plate 29 first contacts the lining plate, and in the subsequent downward pressure, the side pressure plate 29 of the elastic material is deformed and bent to both sides at an angle inclined to both sides at the bottom end, and in the process of bending, it moves to both sides at the top of the lining plate. Then the side pressure block 27 and the inner pad 28 contact the lining plate to press the lining plate so that the lining plate and the mother plate are closely fitted. In the process of continuous downward pressure, the elastic pad 26 is compressed and deformed, so that the side pressure block 27 drives the side pressure plate 29 and the inner pad 28 to move upward. Finally, the pressure welding head 23 contacts the top of the lining plate, cooperates with the contact between the conductive head 7 and the mother plate, so that the mother plate and the lining plate are energized for welding.

[0041] When the motherboard is supported by the supporting mechanism 4, the motherboard is placed on the top of the bottom support plate 43 and supported by the bottom support plate 43. Before placing it in, the slider 42 can be slidably adapted to the slide groove of the cross groove plate 41 to adjust the positions of the bottom support plates 43 on both sides so that the bottom support plates 43 are adapted to the width of the motherboard. During the clamping process, the curved surface of the non-opposite surface of the bottom support plate 43 provides space for the residue and debris to slide off.

[0042] In the process of clamping and fixing the motherboard by the clamping mechanism 3, the clamping cylinder 301 uses the convex plate 306 to drive the slide plate 307 to approach the center position, and in the process of approaching, the slide plate 307 drives the oblique clamping block 314 to approach the motherboard through the zigzag plate 311 and the spring 313. After the oblique clamping block 314 contacts the motherboard, the clamping pressure compresses the spring 313 through the oblique clamping block 314 to deform, so that the slide bar 312 slides in the sliding hole of the zigzag plate 311, so that the oblique clamping block 314 moves to both sides relative to the side oblique block 310. When the side inclined blocks 310 are moved close to the two side ends of the motherboard, during the contact process, the position of the motherboard is adjusted by the inclined surfaces of the side inclined blocks 310, and the motherboard is positioned directly above the support mechanism 4 by the drive of the inclined surfaces on both sides. At the same time, during the clamping process, the connecting arms 308 are driven to approach each other by the side inclined blocks 310. During the approaching process, the pressure rollers 309 contact the two sides of the top of the motherboard, and the pressure rollers 309 press the motherboard downward, cooperating with the support mechanism 4 to prevent the motherboard material from deforming and bulging during the clamping process when it is elastic.

[0043] 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 ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A semi-automatic lining plate welding machine, characterized in that: include: A frame (1), a support plate (6) is fixedly mounted on the top of the frame (1), a conductive head (7) is fixedly mounted at the center of the top of the support plate (6), and first cylinders (5) are fixedly mounted on both sides of the frame (1); A pressure welding mechanism (2), the pressure welding mechanism (2) is slidably mounted inside the frame (1), and two ends of the pressure welding mechanism (2) are fixedly connected to the output end of the first cylinder (5); A clamping mechanism (3), the clamping mechanism (3) being symmetrically mounted on two sides of the top of the support plate (6), a support mechanism (4) being fixedly mounted between the clamping mechanisms (3), and the support mechanism (4) being located directly below the pressure welding mechanism (2); The pressure welding mechanism (2) comprises a top plate (22), a connecting frame (21) is fixedly installed on the top of the top plate (22), a fixing frame (24) is fixedly installed on the bottom of both sides of the connecting frame (21), a pressure welding head (23) is fixedly installed inside the fixing frame (24), an inner slide plate (25) is slidably installed on the inner wall of the connecting frame (21), an elastic pad (26) is fixedly connected to the top of the inner slide plate (25), the top of the elastic pad (26) is in contact with the top of the inner wall of the connecting frame (21), and a side pressure block (27) is fixedly installed on the bottom of the inner slide plate (25), the side pressure block (27) is symmetrically installed along the central position of the axis of the inner slide plate (25), and the bottom end of the side pressure block (27) is lower than the bottom end of the pressure welding head (23).

2. A semi-automatic lining plate welding machine according to claim 1, characterized in that: An inner pad (28) is fixedly installed between the opposite surfaces of the side pressure block (27), the bottom end of the inner pad (28) is flush with the bottom end of the side pressure block (27), and the bottom of the inner pad (28) is provided with friction patterns, and both ends of the bottom of the top plate (22) are fixedly connected to the output end of the first cylinder (5).

3. A semi-automatic lining plate welding machine according to claim 2, characterized in that: A side pressure plate (29) is fixedly installed between opposite surfaces of the side pressure block (27), and the side pressure plate (29) is symmetrically installed along the center position of the axis of the side pressure block (27). The side pressure plate (29) is made of elastic material, and the bottom end of the side pressure plate (29) is inclined from top to bottom to both sides, and the bottom end of the side pressure plate (29) is lower than the bottom end of the inner pad (28).

4. A semi-automatic lining plate welding machine according to claim 3, characterized in that: The support mechanism (4) comprises a transverse groove plate (41), both ends of which are fixedly connected to the clamping mechanism (3), and the transverse groove plate (41) is symmetrically installed along the center position of the axis of the support plate (6), and a sliding groove is provided on the top of the transverse groove plate (41).

5. A semi-automatic lining plate welding machine according to claim 4, characterized in that: The inner wall of the transverse groove plate (41) is slidably mounted with a slider (42), the top of the slider (42) is fixedly connected with a bottom support plate (43), and the side of the bottom support plate (43) close to the clamping mechanism (3) is an inwardly concave arc surface.

6. A semi-automatic lining plate welding machine according to claim 5, characterized in that: The clamping mechanism (3) comprises a fixing plate (303), the bottom of which is fixedly connected to the top of the supporting plate (6), and the tops of the opposite surfaces of the fixing plate (303) are fixedly mounted with side plates (302), and the two sides of the opposite surfaces of the side plates (302) are fixedly connected to the two ends of the transverse groove plate (41).

7. A semi-automatic lining plate welding machine according to claim 6, characterized in that: A clamping cylinder (301) is fixedly installed at the bottom of the side plate (302), and an axis slot plate (305) is fixedly installed at the center position of the opposite surface of the side plate (302), and axis slots are symmetrically opened on the top of the axis slot plate (305), and an axis block (304) is slidably installed in the axis slot of the axis slot plate (305).

8. A semi-automatic lining plate welding machine according to claim 7, characterized in that: A slide plate (307) is fixedly mounted on the top of each shaft block (304), a convex plate (306) is fixedly mounted on the bottom of each slide plate (307), and the non-opposite surface of each convex plate (306) is fixedly connected to the output end of the clamping cylinder (301).

9. A semi-automatic lining plate welding machine according to claim 8, characterized in that: Side inclined blocks (310) are fixedly installed on both sides of the top of the slide plate (307), the opposite surfaces of the side inclined blocks (310) are inclined surfaces, and the non-opposite surfaces of the side inclined blocks (310) are fixedly installed with connecting arms (308), one end of the connecting arm (308) away from the side inclined block (310) is tilted upward, and one end of the connecting arm (308) away from the side inclined block (310) is rotatably connected to a pressure roller (309), and the pressure roller (309) is made of rubber material.

10. A semi-automatic lining plate welding machine according to claim 9, characterized in that: The non-opposite surfaces of the slide plate (307) are fixedly installed with a bending plate (311), the bending plate (311) is evenly installed on the outer side of the slide plate (307) along the axial direction, and the end of the bending plate (311) away from the slide plate (307) is bent upward, the end of the bending plate (311) away from the slide plate (307) is provided with a sliding hole, and a sliding rod (312) is slidably installed at the sliding hole of the bending plate (311), one end of the sliding rod (312) is fixedly connected with an oblique clamping block (314), a spring (313) is fixedly installed between the oblique clamping block (314) and the bending plate (311), the opposite surface of the oblique clamping block (314) is an inclined surface inclined from top to bottom to both sides, and the bottom of the oblique clamping block (314) is evenly provided with notches, and the bottom of the oblique clamping block (314) is flush with the top of the bottom support plate (43).

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