Automatic polishing device for surface of shell casting

Abstract

The application discloses a kind of shell casting surface automatic polishing device, belong to casting processing equipment technical field, including bottom plate, cross numerical control sliding table is provided on bottom plate, auxiliary electric cylinder, auxiliary motor, polishing head, annular support frame is fixedly installed on bottom plate, the height adjusting assembly, distance adjusting assembly, position adjusting assembly are provided on annular support frame, replaceable electromagnet is provided on height adjusting sliding plate, can be independently adsorbed fixed according to casting support point, avoid the deformation or obstruction caused by traditional fixture, guarantee polishing head to reach the whole domain of shell surface, by the mutual cooperation of height adjusting assembly, distance adjusting assembly, position adjusting assembly, the spatial position of multiple electromagnets can be flexibly adjusted, adapt to different shapes, size shell casting, realize the stable support and fixed to complex curved surface casting, significantly improve the adaptability and precision of polishing.

Description

Technical Field

[0001] This invention relates to the field of casting processing equipment technology, and in particular to an automatic grinding and polishing device for the surface of a shell casting. Background Technology

[0002] In the field of engineering machinery, housing castings are key load-bearing and protective components, and their surface quality directly affects the overall performance, sealing performance, and service life of the machine. After casting, housing castings often have defects such as gates, flash, burrs, and oxide scale remaining on their surface, requiring mechanical polishing to meet assembly and usage requirements. Existing housing casting surface grinding and polishing devices mostly use mechanical clamping or peripheral clamping to fix the castings, which not only easily causes local deformation or surface scratches, but also creates blind spots in the grinding head, preventing it from reaching parts of the housing surface due to obstruction of the clamping area, affecting the integrity and consistency of grinding and polishing. Different models of housing castings have complex and diverse shapes, especially castings with curved surfaces, concave and convex structures, or irregular contours, which require high adaptability of support and fixing devices. Existing equipment is difficult to flexibly adjust the spatial position of the support points, often requiring redesign or replacement of special fixtures for different castings, resulting in low production efficiency and increased costs. Therefore, this invention provides an automatic grinding and polishing device for housing casting surfaces. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies by providing an automatic grinding and polishing device for the surface of housing castings. It overcomes the problems of incomplete grinding caused by clamp obstruction and difficulty in supporting and fixing castings of different shapes and sizes.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automatic grinding and polishing device for the surface of a shell casting, comprising a base plate, a cross-shaped CNC slide table, an auxiliary electric cylinder, an auxiliary motor, and a grinding head, and a ring support frame fixedly mounted on the base plate, wherein a height adjustment component, a distance adjustment component, and a position adjustment component are provided on the ring support frame. The height adjustment component includes multiple fan-shaped slides, each fan-shaped slide having a height adjustment slide plate and a limit slide plate slidably mounted thereon. Each height adjustment slide plate has an electromagnet at its upper end, and a ratchet assembly is provided between the height adjustment slide plate and the corresponding limit slide plate. An unlocking unit is provided between the multiple limit slide plates. The distance adjustment component includes multiple strip slide plates, each strip slide plate being movably mounted on the ring support frame. Each fan-shaped slide plate is slidably mounted on its corresponding strip slide plate, and a transmission unit is provided between the multiple fan slides. The position adjustment component has a position adjustment gear ring rotatably mounted on the ring support frame, and a linkage strip plate is movably mounted on the position adjustment gear ring. A linkage short rod is symmetrically fixedly mounted on the linkage strip plate, and a linkage sleeve cooperating with the linkage short rod is symmetrically fixedly mounted on each strip slide plate.

[0005] Furthermore, the direction in which the height adjustment slide relative to the fan-shaped slide is perpendicular to the direction in which the limit slide relative to the fan-shaped slide is perpendicular to the lower surface of the base plate. A return spring is provided between the height adjustment slide and the fan-shaped slide, and a limit spring is provided between the limit slide and the fan-shaped slide.

[0006] Furthermore, the unlocking unit includes an unlocking electric cylinder fixedly mounted on the base plate. Multiple unlocking strips are rotatably mounted on the piston rod end of the unlocking electric cylinder. Unlocking slide plates are slidably mounted on each unlocking strip plate. The unlocking slide plates are slidably engaged with corresponding limiting slide plates. A triangular push block is fixedly set at the upper end of the unlocking slide plate. An unlocking short rod is also fixedly mounted on the limiting slide plate. The unlocking short rod and the triangular push block are used to adjust the position of the limiting slide plate relative to the height adjustment slide plate.

[0007] Furthermore, the ratchet assembly includes two ratchets, which are respectively fixedly installed on the height adjustment plate and the limit plate. When the ratchets on the height adjustment plate and the limit plate are engaged, they form a ratchet mechanism. The height adjustment assembly also includes a height adjustment electric cylinder fixedly installed on the base plate, which is used to push the height adjustment plate to move upward.

[0008] Furthermore, each strip slide is rotatably mounted with an adjusting screw and a transmission block. The adjusting screw and the corresponding sector slide form a helical pair, and a gear set is provided between the transmission block and the corresponding adjusting screw.

[0009] Furthermore, the transmission unit includes a long fan-shaped plate and a short fan-shaped plate. The long fan-shaped plate is fixedly mounted on the annular support frame, and the short fan-shaped plate is rotatably mounted on the annular support frame. When the two ends of the short fan-shaped plate are engaged with the long fan-shaped plate, a complete limiting ring plate is formed between them. The transmission blocks are all movably connected to the limiting ring plate, and each transmission block is provided with an arc-shaped groove that cooperates with the limiting ring plate.

[0010] Furthermore, a linkage electric cylinder is fixedly installed on the adjusting gear ring, and a linkage bar is fixedly installed on the end of the movable rod of the linkage electric cylinder. When the linkage short rod engages with the corresponding linkage sleeve, they slide together.

[0011] Furthermore, a friction ring plate is slidably installed on the annular support frame, and a pressing electric cylinder is symmetrically arranged between the annular support frame and the friction ring plate. There is friction between the strip slide plate and the annular support frame, and there is friction between the friction ring plate and the strip slide plate. The friction ring plate is used to fix the strip slide plate and the annular support frame.

[0012] The beneficial effects of this invention compared with the prior art are as follows: (1) By setting replaceable electromagnets on the height adjustment slide, this invention can independently adsorb and fix according to the support point of the casting, avoiding deformation or obstruction caused by traditional clamps, and ensuring that the grinding head can reach the entire surface of the shell. (2) By setting a ratchet group, this invention can automatically lock after height adjustment, preventing height changes due to gravity or vibration, ensuring long-term stability of the electromagnet support height, and eliminating the need for continuous power supply. (3) By setting an unlocking unit, this invention can simultaneously release the ratchet locks of multiple limit slides, facilitating quick adjustment of the height of all electromagnets and simplifying the operation process. (4) Through the cooperation of the height adjustment component, distance adjustment component, and position adjustment component, this invention can flexibly adjust the spatial position of multiple electromagnets, adapt to shell castings of different shapes and sizes, achieve stable support and fixation for complex curved surface castings, and significantly improve the adaptability and accuracy of grinding and polishing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 This is a schematic diagram of the electromagnet in this invention.

[0015] Figure 3 This is a schematic diagram of the structure of the annular support frame of the present invention.

[0016] Figure 4 This is a top view of the structure at the annular support frame of the present invention.

[0017] Figure 5 This is a schematic diagram of the height adjustment component of the present invention.

[0018] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.

[0019] Figure 7 This is a front view of the structure at the height adjustment slide of the present invention.

[0020] Figure 8 This is a schematic diagram of the structure of the distance adjustment component of the present invention.

[0021] Figure 9 for Figure 8 A magnified view of a portion of point B in the middle.

[0022] Figure 10 This is a schematic diagram of the structure of the fan-shaped elongated plate of the present invention.

[0023] Figure 11 for Figure 10 A magnified view of a portion of point C.

[0024] Figure 12 This is a schematic diagram of the positioning component of the present invention.

[0025] Figure 13 for Figure 12 A magnified view of a portion of point D.

[0026] Figure 14 This is a schematic diagram of the structure of the adjusting tooth ring of the present invention.

[0027] Figure 15 for Figure 14 Enlarged view of a portion of point E Attached reference numerals: 101-Base plate; 102-Cross-shaped CNC slide table; 103-Auxiliary electric cylinder; 104-Auxiliary motor; 105-Grinding head; 106-Ring support frame; 107-Height adjustment electric cylinder; 108-Unlocking electric cylinder; 109-Unlocking strip; 110-Electromagnet; 111-Strip slide; 112-Fan-shaped slide; 113-Height adjustment slide; 114-Limit slide; 115-Ratchet assembly; 116-Unlocking slide; 117-Unlocking short rod; 118-Triangle pusher Block; 119-Leaning hole; 120-Limit spring; 121-Reset spring; 122-Adjusting screw; 123-Fan-shaped long strip; 124-Gear set; 125-Transmission round block; 126-Adjusting motor; 127-Fan-shaped short strip; 128-Adjusting gear ring; 129-Friction ring plate; 130-Pressing electric cylinder; 131-Linkage electric cylinder; 132-Linkage strip; 133-Linkage short rod; 134-Linkage sliding sleeve; 135-Adjusting motor; 136-Adjusting gear. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0029] Example: Reference Figures 1-15 An automatic grinding and polishing device for the surface of a housing casting includes a base plate 101. A cross-shaped CNC slide 102, an auxiliary electric cylinder 103, an auxiliary motor 104, and a grinding head 105 are mounted on the base plate 101. The cross-shaped CNC slide 102 is fixedly mounted on the base plate 101, and the auxiliary electric cylinder 103 is fixedly mounted on the slide of the cross-shaped CNC slide 102. The auxiliary electric cylinder 103 moves relative to the base plate 101 via the cross-shaped CNC slide 102. The auxiliary motor 104 is fixedly mounted on the lower end of the piston rod of the auxiliary electric cylinder 103, and the grinding head 105 is fixedly mounted on the output shaft of the auxiliary motor 104. The grinding head 105 moves along the x, y, and z axes via the cross-shaped CNC slide 102 and the auxiliary electric cylinder 103. The grinding head 105 rotates when the auxiliary motor 104 is activated.

[0030] A ring-shaped support frame 106 is fixedly installed on the base plate 101. A height adjustment component is provided on the ring-shaped support frame 106. The height adjustment component includes multiple sector-shaped slides 112. A height adjustment slide plate 113 and a limit slide plate 114 are slidably installed on each sector-shaped slide 112. The sliding direction of the height adjustment slide plate 113 relative to the sector-shaped slide 112 is perpendicular to the sliding direction of the limit slide plate 114 relative to the sector-shaped slide 112. The sliding direction of the height adjustment slide plate 113 relative to the sector-shaped slide 112 is perpendicular to the lower surface of the base plate 101. A return spring 121 is provided between the height adjustment slide plate 113 and the sector-shaped slide 112. A limit spring 120 is provided between the limit slide plate 114 and the sector-shaped slide 112.

[0031] In the initial position, neither the limit spring 120 nor the return spring 121 is compressed. At this time, the height adjustment slide 113 is located on the sector slide 112 at the position closest to the lower surface of the base plate 101, and at this time, the limit slide 114 is located on the sector slide 112 at the position closest to the corresponding height adjustment slide 113.

[0032] The upper end of the height adjustment slide plate 113 is equipped with an electromagnet 110. The height adjustment slide plate 113 and the electromagnet 110 are connected by threads, and the electromagnet 110 on the height adjustment slide plate 113 can be replaced according to installation requirements.

[0033] A ratchet assembly 115 is provided between the height adjustment slide 113 and the corresponding limit slide 114. The ratchet assembly 115 includes two ratches, which are fixedly installed on the height adjustment slide 113 and the limit slide 114 respectively. When the ratches on the height adjustment slide 113 and the limit slide 114 are engaged, they form a ratchet mechanism. In the initial position, that is, when the limit spring 120 is not compressed, the ratches on the height adjustment slide 113 and the limit slide 114 are engaged to form a ratchet mechanism. At this time, under the action of the ratchet assembly 115, the height adjustment slide 113 cannot move downward relative to the limit slide 114.

[0034] An unlocking unit is provided between multiple limiting slide plates 114. The unlocking unit includes an unlocking electric cylinder 108 fixedly installed on the base plate 101. Multiple unlocking strips 109 are rotatably installed on the piston rod end of the unlocking electric cylinder 108. The center line of the rotatable connection between the unlocking strips 109 and the unlocking electric cylinder 108 is on the same straight line as the axis of the annular support frame 106. Unlocking slide plates 116 are slidably installed on each unlocking strip 109. The unlocking slide plates 116 are slidably engaged with the corresponding limiting slide plates 114. A triangular push block 118 is fixedly provided at the upper end of the unlocking slide plate 116. An unlocking short rod 117 is also fixedly installed on the limiting slide plate 114. The unlocking short rod 117 and the triangular push block 118 are used to adjust the position of the limiting slide plate 114 relative to the height adjustment slide plate 113.

[0035] In the initial position, the unlocking plates 109 are all located closest to the lower surface of the base plate 101. At this time, the triangular push block 118 is not in contact with the unlocking short rod 117, that is, the limiting spring 120 is not compressed. The unlocking electric cylinder 108 is activated, causing the piston rod of the unlocking electric cylinder 108 to move upward, so that the unlocking plates 109 move upward synchronously, and the unlocking slide plates 116 move upward synchronously. The triangular push block 118 contacts the unlocking short rod 117. Under the action of the triangular push block 118, the unlocking short rod 117 moves away from the axis of the annular support frame 106. The limiting slide plate 114 corresponding to the unlocking short rod 117 moves synchronously, and the limiting spring 120 is compressed, which causes the ratchet on the limiting slide plate 114 to disengage and engage with the ratchet on the height adjustment slide plate 113, that is, the restriction that the height adjustment slide plate 113 cannot move downward is released.

[0036] The height adjustment assembly also includes a height adjustment electric cylinder 107 fixedly installed on the base plate 101. The height adjustment electric cylinder 107 is used to push the height adjustment slide plate 113 to move upward. Each of the unlocking strip plates 109 is provided with a clearance hole 119. The clearance hole 119 is used to accommodate the piston rod of the height adjustment electric cylinder 107 to move upward and contact the lower end of the height adjustment slide plate 113.

[0037] When it is necessary to adjust the height of electromagnet 110 relative to base plate 101, first move the height adjustment slide plate 113 corresponding to electromagnet 110 directly above the height adjustment cylinder 107. At this time, the clearance hole 119 on the unlocking strip 109 corresponding to electromagnet 110 is not directly above the height adjustment cylinder 107. Then, start the height adjustment cylinder 107 to move the piston rod of the height adjustment cylinder 107 upward. The piston rod of the height adjustment cylinder 107 first passes through the clearance hole 119 corresponding to electromagnet 110 and contacts the lower end face of the corresponding height adjustment slide plate 113. The piston rod of the height adjustment cylinder 107 continues to move upward, thereby pushing the height adjustment slide plate 113 to move upward relative to the limit slide plate 114, so that electromagnet 110 moves upward, thus realizing the adjustment of the height of electromagnet 110 relative to base plate 101.

[0038] An adjustable pitch assembly is provided on the annular support frame 106. The adjustable pitch assembly includes multiple strip slides 111, all of which are movably mounted on the annular support frame 106. When the annular support frame 106 moves, each strip slide 111 rotates relative to the axis of the annular support frame 106. Sector slides 112 are slidably mounted on the corresponding strip slides 111. Adjustable pitch screws 122 and transmission blocks 125 are rotatably mounted on each strip slide 111. The adjustable pitch screws 122 and the corresponding sector slides 112 form a helical pair. A gear set 124 is provided between the transmission block 125 and the corresponding adjustable pitch screw 122. The gear set 124 includes two bevel gears, which are fixedly mounted on the adjustable pitch screws 122 and the transmission blocks 125, respectively. The two bevel gears mesh to form a gear pair.

[0039] A transmission unit is provided between multiple sector-shaped slides 112. The transmission unit includes a sector-shaped long strip 123 and a sector-shaped short strip 127. The sector-shaped long strip 123 is fixedly installed on the annular support frame 106, and the sector-shaped short strip 127 is rotatably installed on the annular support frame 106. An adjustable pitch motor 126 is also fixedly installed on the annular support frame 106. The output shaft of the adjustable pitch motor 126 is fixedly connected to the sector-shaped short strip 127. When the two ends of the sector-shaped short strip 127 are engaged with the sector-shaped long strip 123, a complete limiting ring plate is formed between them. The transmission blocks 125 are all movably connected to the limiting ring plate. Each transmission block 125 is provided with an arc-shaped groove for cooperating with the limiting ring plate. The axes of the limiting ring plate and the annular support frame 106 are on the same straight line.

[0040] In the initial position, the long fan-shaped plate 123 and the short fan-shaped plate 127 are joined to form a complete limiting ring plate. At this time, the drive strip slide 111 moves relative to the annular support frame 106, and the transmission block 125 moves relative to the limiting ring plate. Under the action of the limiting ring plate, the transmission block 125 cannot rotate freely, thereby locking the position of the adjusting screw 122, that is, locking the position of the fan-shaped slide block 112 relative to the strip slide 111.

[0041] When it is necessary to adjust the distance between the electromagnet 110 and the axis of the annular support frame 106, the strip slide 111 corresponding to the electromagnet 110 to be adjusted is moved to the top of the height adjustment cylinder 107. At this time, the transmission block 125 corresponding to the electromagnet 110 engages with the fan-shaped short strip 127, and the transmission block 125 disengages from the fan-shaped long strip 123. At this time, the axis of the transmission block 125 and the pitch adjustment motor 126 are on the same straight line. The pitch adjustment motor 126 is started to drive the fan-shaped short strip 127 to rotate. The transmission block 125 engaged with the fan-shaped short strip 127 rotates synchronously. Under the action of the gear set 124, the pitch adjustment screw 122 rotates, so that the fan-shaped slide 112 moves towards the axis of the annular support frame 106 or away from the axis of the annular support frame 106.

[0042] It is worth noting that the number of rotations of the transmission block 125 driven by the pitch motor 126 is always an integer number of rotations, thereby ensuring that the arc groove on the transmission block 125 and the circumferential direction of the sector slide 112 are always the same after the position adjustment of the sector slide 112 is completed.

[0043] An adjusting component is provided on the annular support frame 106. The adjusting component is rotatably mounted on the adjusting gear ring 128 on the annular support frame 106. An adjusting motor 135 is also fixedly mounted on the annular support frame 106. An adjusting gear 136 is fixedly mounted on the output shaft of the adjusting motor 135. The adjusting gear 136 and the adjusting gear ring 128 mesh to form a gear pair. A linkage plate 132 is movably arranged on the adjusting gear ring 128. A linkage electric cylinder 131 is fixedly mounted on the adjusting gear ring 128. The linkage plate 132 is fixedly mounted on the end of the movable rod of the linkage electric cylinder 131. A linkage short rod 133 is symmetrically fixedly arranged on the linkage plate 132. A linkage sliding sleeve 134 that cooperates with the linkage short rod 133 is symmetrically fixedly arranged on the strip slide plate 111. When the linkage short rod 133 and the corresponding linkage sliding sleeve 134 are engaged, they slide together.

[0044] In the initial position, the linkage plate 132 is located closest to the lower surface of the base plate 101. At this time, the linkage short rod 133 is not in contact with the linkage sleeve 134. The adjustment motor 135 is then activated to drive the adjustment gear 136 to rotate, causing the adjustment gear ring 128 to rotate relative to the annular support frame 106. The axes of the adjustment gear ring 128 and the annular support frame 106 are on the same straight line. When the adjustment gear ring 128 rotates to a position directly below the electromagnet 110 where the linkage cylinder 131 is moved to the desired adjustment position, the linkage short rod 133 is positioned at the electromagnet 110. Directly below the two linkage sleeves 134 corresponding to the magnet 110, the linkage cylinder 131 is activated to drive the linkage plate 132 to move upward, thereby causing the two linkage short rods 133 on the linkage plate 132 to engage with the two linkage sleeves 134 corresponding to the electromagnet 110. At this time, the adjusting gear ring 128 is driven to rotate relative to the annular support frame 106. Under the action of the linkage short rods 133 and the linkage sleeves 134, the strip slide plate 111 rotates synchronously, thereby realizing the adjustment of the position of the strip slide plate 111, that is, the adjustment of the position of the electromagnet 110.

[0045] A friction ring plate 129 is also slidably mounted on the annular support frame 106. A pressing electric cylinder 130 is symmetrically arranged between the annular support frame 106 and the friction ring plate 129. The pressing electric cylinders 130 are all fixedly mounted on the annular support frame 106. The piston rod end of the pressing electric cylinder 130 is fixedly connected to the friction ring plate 129. There is friction between the strip slide plate 111 and the annular support frame 106, and there is friction between the friction ring plate 129 and the strip slide plate 111. The friction ring plate 129 is used to fix the strip slide plate 111 and the annular support frame 106.

[0046] When the position of the strip slide 111 does not need to be adjusted, under the action of the pressing electric cylinder 130, the upper surface of the strip slide 111 is in contact with the lower surface of the friction ring plate 129, and the friction ring plate 129 is in a pressing state on the strip slide 111. That is, under the action of the friction ring plate 129, the strip slide 111 cannot move relative to the annular support frame 106. When the position of the strip slide 111 needs to be adjusted, the pressing electric cylinder 130 is activated to drive the friction ring plate 129 to move upward, so that the friction ring plate 129 disengages from the contact with the strip slide 111, thereby releasing the restriction on the movement of the strip slide 111. At this time, the strip slide 111 can move relative to the annular support frame 106, but under the action of the friction between the annular support frame 106 and the strip slide 111, the strip slide 111 will not move relative to the annular support frame 106 when it is not subjected to external force.

[0047] Working principle: After designing the installation position according to the housing casting to be polished, the electromagnet 110 on the fan-shaped slide 112 is replaced according to the installation requirements, and the unlocking cylinder 108 is activated to move the unlocking bar 109 upward. Under the action of the unlocking unit, the height adjustment slide 113 is moved to the position closest to the lower surface of the base plate 101.

[0048] The adjustment components move each strip slide 111 sequentially above the height adjustment cylinder 107. When the strip slide 111 is directly above the height adjustment cylinder 107, the height adjustment cylinder 107 and the distance adjustment motor 126 are activated. Under the action of the height adjustment components and the distance adjustment components, the distance between the axis of the electromagnet 110 and the annular support frame 106 and the distance between the electromagnet 110 and the lower surface of the base plate 101 are adjusted. After the position adjustment of the electromagnets 110 on each strip slide 111 is completed, the adjustment components move each strip slide 111 to the designated position, so that multiple electromagnets 110 form a support base for the housing casting. The position of the strip slide 111 is restricted by the friction ring plate 129, thereby preventing the position of the strip slide 111 from shifting.

[0049] After adjusting the position of each electromagnet 110, the housing casting to be polished is hoisted onto the support base. At this time, each electromagnet 110 is in contact with the support point of the housing casting, and each electromagnet 110 is activated. Under the action of the electromagnet 110, the housing casting is attracted and fixed. Then, the grinding head 105 is controlled by the cross CNC slide table 102, the auxiliary electric cylinder 103, and the auxiliary motor 104 to polish the housing casting.

[0050] This invention is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort are within the protection scope of this invention.

Claims

1. An automatic grinding and polishing device for the surface of a housing casting, comprising a base plate (101), wherein a cross-shaped CNC slide (102), an auxiliary electric cylinder (103), an auxiliary motor (104), and a grinding head (105) are arranged on the base plate (101), characterized in that: A ring support frame (106) is fixedly installed on the base plate (101). The ring support frame (106) is provided with a height adjustment component, a distance adjustment component, and a position adjustment component. The height adjustment component includes multiple fan-shaped slides (112). Each fan-shaped slide (112) has a height adjustment slide plate (113) and a limiting slide plate (114) slidably installed on it. Each height adjustment slide plate (113) has an electromagnet (110) at its upper end. A ratchet assembly (115) is provided between the height adjustment slide plate (113) and the corresponding limiting slide plate (114). An unlocking unit is provided between the multiple limiting slide plates (114). The distance adjustment component includes multiple strip slide plates (115). 11) The strip slides (111) are all movably mounted on the ring support frame (106), and the fan-shaped slides (112) are slidably mounted on the corresponding strip slides (111). A transmission unit is provided between the multiple fan-shaped slides (112). The adjustment component is rotatably mounted on the ring support frame (106) and the adjustment gear ring (128) is movably mounted on the adjustment gear ring (128). The linkage bar (132) is symmetrically fixed on the linkage bar (132), and the linkage short rod (133) is symmetrically fixed on the strip slides (111) and the linkage sleeve (134) that cooperates with the linkage short rod (133) is symmetrically fixed on the strip slides (111).

2. The automatic grinding and polishing device for the surface of a shell casting according to claim 1, characterized in that: The direction in which the height adjustment slide plate (113) slides relative to the fan-shaped slide (112) is perpendicular to the direction in which the limiting slide plate (114) slides relative to the fan-shaped slide (112). The direction in which the height adjustment slide plate (113) slides relative to the fan-shaped slide (112) is perpendicular to the lower surface of the base plate (101). A return spring (121) is provided between the height adjustment slide plate (113) and the fan-shaped slide (112), and a limiting spring (120) is provided between the limiting slide plate (114) and the fan-shaped slide (112).

3. The automatic grinding and polishing device for the surface of a shell casting according to claim 1, characterized in that: The unlocking unit includes an unlocking electric cylinder (108) fixedly installed on the base plate (101). Multiple unlocking strips (109) are rotatably installed on the piston rod end of the unlocking electric cylinder (108). Unlocking slide plates (116) are slidably installed on each unlocking strip plate (109). The unlocking slide plates (116) are slidably engaged with the corresponding limiting slide plates (114). A triangular push block (118) is fixedly installed at the upper end of the unlocking slide plate (116). An unlocking short rod (117) is also fixedly installed on the limiting slide plate (114). The unlocking short rod (117) and the triangular push block (118) are used to adjust the position of the limiting slide plate (114) relative to the height adjustment slide plate (113).

4. The automatic grinding and polishing device for the surface of a shell casting according to claim 3, characterized in that: The ratchet assembly (115) includes two ratchets, which are fixedly installed on the height adjustment slide (113) and the limit slide (114) respectively. When the ratchets on the height adjustment slide (113) and the limit slide (114) are engaged, they form a ratchet mechanism. The height adjustment assembly also includes a height adjustment electric cylinder (107) fixedly installed on the base plate (101). The height adjustment electric cylinder (107) is used to push the height adjustment slide (113) to move upward.

5. The automatic grinding and polishing device for the surface of a shell casting according to claim 1, characterized in that: Each of the strip slide plates (111) is rotatably mounted with an adjusting screw (122) and a transmission block (125). The adjusting screw (122) and the corresponding fan-shaped slide (112) form a helical pair. A gear set (124) is provided between the transmission block (125) and the corresponding adjusting screw (122).

6. The automatic grinding and polishing device for the surface of a shell casting according to claim 5, characterized in that: The transmission unit includes a fan-shaped long strip (123) and a fan-shaped short strip (127). The fan-shaped long strip (123) is fixedly installed on the annular support frame (106), and the fan-shaped short strip (127) is rotatably installed on the annular support frame (106). When the two ends of the fan-shaped short strip (127) are engaged with the fan-shaped long strip (123), a complete limiting ring plate is formed between them. The transmission blocks (125) are all movably connected to the limiting ring plate, and the transmission blocks (125) are all provided with arc-shaped grooves that cooperate with the limiting ring plate.

7. The automatic grinding and polishing device for the surface of a shell casting according to claim 1, characterized in that: A linkage electric cylinder (131) is fixedly installed on the adjusting gear ring (128), and the linkage bar plate (132) is fixedly installed on the movable rod end of the linkage electric cylinder (131). When the linkage short rod (133) engages with the corresponding linkage sleeve (134), they slide together.

8. The automatic grinding and polishing device for the surface of a shell casting according to claim 7, characterized in that: A friction ring plate (129) is also slidably installed on the annular support frame (106). A pressing electric cylinder (130) is symmetrically arranged between the annular support frame (106) and the friction ring plate (129). There is friction between the strip slide plate (111) and the annular support frame (106), and there is friction between the friction ring plate (129) and the strip slide plate (111). The friction ring plate (129) is used to fix the strip slide plate (111) and the annular support frame (106).

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