Positioning device applied to casting part welding

Abstract

The invention relates to the field of tool welding equipment, in particular to a positioning device applied to casting part welding, which is characterized in that a first positioning mechanism, a second positioning mechanism and a third positioning mechanism are respectively used for positioning the front end, the middle end and the tail end of a tool; a balance supporting plate is additionally arranged on the side, located on the third positioning mechanism, of the bottom plate, the tail end of the tool is clamped and positioned through the balance supporting plate and the third positioning mechanism, the bottom of the balance supporting plate is fixed to the bottom plate, and a first adjusting block and a second adjusting block are installed on the left side and the right side of the top of the balance supporting plate correspondingly. The first adjusting block and the second adjusting block are supported at the bottom of the tool, and the first adjusting block, the second adjusting block and the third positioning mechanism are used for clamping and positioning the tail end of the tool; the first adjusting block and the second adjusting block are both movably installed on the top of the balance supporting plate. The tool positioning device aims at avoiding the phenomenon that a tool is excessively positioned, and the forming quality of the tool can be guaranteed.

Description

Technical Field

[0001] The present application relates to the field of tooling welding equipment, and in particular to a positioning device used for welding of castings. Background Art

[0002] During daily processing and production, when welding is required, the tooling is often positioned through a corresponding positioning device to effectively ensure the stability of the tooling during the welding process, thereby effectively ensuring the quality and efficiency of the tooling welding.

[0003] In the related art, when the positioning device is positioning the tooling, while ensuring that the tooling is effectively positioned, it cannot over-position the tooling. Once the positioning device over-positions the tooling, although it can ensure the positioning effect of the tooling, the over-positioning will cause structural damage to the tooling, which will further affect the molding quality of the tooling.

[0004] Therefore, how to position the tooling stably and effectively during the tooling welding process without over-positioning the tooling is an urgent problem to be solved. Summary of the invention

[0005] The present application provides a positioning device used for welding castings, the purpose of which is to avoid over-positioning of the tooling while stably and effectively positioning the tooling, thereby effectively preventing structural damage to the tooling due to over-positioning, which is beneficial to ensuring the molding quality of the tooling.

[0006] The present application provides a positioning device for casting welding, which adopts the following technical solution:

[0007] A positioning device for welding castings, comprising a base plate, wherein a first positioning mechanism, a second positioning mechanism and a third positioning mechanism are provided on the base plate, wherein the first positioning mechanism, the second positioning mechanism and the third positioning mechanism are respectively used to position the front end, the middle end and the end of a tool; a balancing support plate is additionally provided on the base plate at one side of the third positioning mechanism, wherein the balancing support plate and the third positioning mechanism clamp and position the end of the tool, wherein the bottom of the balancing support plate is fixed to the base plate, and a first adjusting block and a second adjusting block are respectively installed on the left and right sides of the top of the balancing support plate, wherein the first adjusting block and the second adjusting block are supported on the bottom of the tool, and the first adjusting block, the second adjusting block and the third positioning mechanism clamp and position the end of the tool;

[0008] The first adjusting block and the second adjusting block are both movably mounted on the top of the balancing support plate.

[0009] By adopting the above technical solution, when positioning the tooling, the front end and the middle end of the tooling are first positioned by the first positioning mechanism and the second positioning mechanism, and then the end of the tooling is positioned by the third positioning mechanism and the first adjustment block and the second adjustment block on the balance support plate. After the third positioning mechanism and the first adjustment block and the second adjustment block clamp the end of the tooling, the abutment degree of the first adjustment block or the second adjustment block with the end of the tooling is adjusted according to the specific position of the tooling positioned by the first positioning mechanism and the second positioning mechanism and the positioning effect, so that the positioning clamping force of the third positioning mechanism and the balance support plate on the end of the tooling can be adjusted accordingly.

[0010] For example, according to the positioning of the tooling by the first positioning mechanism and the second positioning mechanism, it is necessary to adjust the clamping force of the third positioning mechanism and the balance support plate on the end of the tooling. In this state, the position of the first adjustment block or the second adjustment block on the balance support plate is movably adjusted, and the clamping force of the balance support plate and the third positioning mechanism on the end of the tooling is adjusted by adjusting the position of the first adjustment block or the second adjustment block on the balance support plate.

[0011] This arrangement, using the first adjustment block and the second adjustment block on the balance support plate, can effectively avoid the phenomenon of over-positioning of the tooling, thereby effectively preventing structural damage to the tooling due to over-positioning, which is beneficial to ensuring the molding quality of the tooling.

[0012] Preferably, the first positioning mechanism comprises a first positioning block, a first supporting plate and a first driving cylinder, the first positioning block is connected to a piston rod of the first driving cylinder, and the first driving cylinder is used to drive the first positioning block to move up and down in a vertical direction;

[0013] The first support plate is fixed on the bottom plate in the vertical direction, and support blocks are integrally formed on both the left and right sides of the top of the first support plate. The two support blocks are located below the tooling, and the first driving cylinder drives the first positioning block to press the front end of the tooling onto the two support blocks.

[0014] By adopting the above technical solution, the front end of the tooling is clamped and positioned using the first positioning block and the two supporting blocks.

[0015] Preferably, the second positioning mechanism comprises a second positioning block, a second support plate and a second driving cylinder, the second positioning block is connected to a piston rod of the second driving cylinder, and the second driving cylinder is used to drive the second positioning block to move up and down in a vertical direction;

[0016] The second support plate is fixed on the bottom plate in the vertical direction. A support rod is integrally formed at the top of the second support plate. The support rod is located below the tooling. The second driving cylinder drives the second positioning block to press the middle end of the tooling against the support rod.

[0017] By adopting the above technical solution, the middle end of the tooling is clamped and positioned by the second positioning block and the support rod.

[0018] Preferably, the third positioning mechanism includes a third positioning block and a third driving cylinder. The third positioning block is connected to the piston rod of the third driving cylinder. The third driving cylinder is used to drive the third positioning block to move up and down in the vertical direction.

[0019] The end of the tooling is located between the third positioning block and the balance support plate. The first adjusting block and the second adjusting block on the third positioning block and the balance support plate clamp and position the end of the tooling.

[0020] By adopting the above technical solution, the middle end of the tooling is clamped and positioned by the third positioning block, the first adjusting block and the second adjusting block.

[0021] Preferably, the third positioning block includes a connecting plate and two pressing plates. The connecting plate is connected to the piston rod of the third driving cylinder. The two pressing plates are respectively fixedly connected to the left and right sides of the bottom of the connecting plate. The connecting plate and the two pressing plates form a "U" - shaped structure.

[0022] A trapezoidal groove is formed at one end of the pressing plate away from the connecting plate.

[0023] By adopting the above technical solution, when specifically pressing the end of the tooling, the part of the tooling connected to the pressing plate will be stuck in the trapezoidal groove of the pressing plate. Thus, the trapezoidal groove can effectively ensure the stability during the pressing process of the pressing plate on the tooling.

[0024] Preferably, the balance support plate is hollow inside. A rotating shaft is inserted horizontally through the middle of the balance support plate. The rotating shaft is driven by a corresponding motor. Activity rods are integrally formed on both the left and right sides of the rotating shaft. One end of the activity rod is connected to the rotating shaft, and the other end of the activity rod is connected to the corresponding first adjusting block or the second adjusting block.

[0025] By adopting the above technical solution, when it is necessary to adjust the first adjusting block or the second adjusting block, turn on the motor. The motor drives the rotating shaft to rotate. During the rotation of the rotating shaft, the activity rod is driven to rotate. Then, the corresponding first adjusting block or the second adjusting block is driven to be adjusted by the activity rod.

[0026] The motor is a forward - reverse motor, and the forward - reverse motor is convenient for driving the rotating shaft to rotate forward and backward.

[0027] When the shaft rotates forward, the movable rod drives the first adjustment block to move away from the tooling, and the second adjustment block moves toward the tooling. In this state, the farther the distance between the first adjustment block and the tooling is, the lower the clamping force between the two is, and the closer the distance between the second adjustment block and the tooling is, the higher the clamping force between the two is. The opposite is true when the shaft rotates backward.

[0028] Furthermore, the first adjustment block and the second adjustment block can be movably adjusted on the balance support plate through the rotating shaft, and the first adjustment block and the second adjustment block can be used to effectively avoid the phenomenon of over-positioning of the tooling, thereby effectively preventing structural damage to the tooling due to over-positioning, which is beneficial to ensuring the molding quality of the tooling.

[0029] Preferably, a positioning step is provided on the top of the balancing support plate, and the first adjusting block and the second adjusting block are respectively located on the left and right sides of the positioning step, the first adjusting block is located on the higher side of the positioning step, and the second adjusting block is located on the lower side of the positioning step, and the third positioning mechanism presses the tooling to the first adjusting block and drives the rotating shaft to rotate.

[0030] By adopting the above technical solution, this setting method uses the positioning step to set the first adjustment block and the second adjustment block to different starting heights. As the first adjustment block descends, the second adjustment block rises synchronously, and the best positioning state is achieved when the second adjustment block abuts against the tooling.

[0031] When the second adjustment block abuts against the tooling, it transmits a signal that the tooling has reached the optimal positioning state. The staff can judge whether the tooling has reached the optimal state based on this signal, thereby effectively avoiding the problem of excessive positioning of the tooling.

[0032] Preferably, a self-locking mechanism is provided inside the balancing support plate.

[0033] By adopting the above technical solution, when the second adjustment block abuts against the tooling to achieve the best positioning effect, the self-locking mechanism is used to lock the first adjustment block and the second adjustment block, thereby effectively ensuring the stability of the tooling in the best positioning state.

[0034] Preferably, the self-locking mechanism comprises a balancing rod, a lifting rod and a locking seat, one end of the balancing rod is connected to the first adjusting block, the other end of the balancing rod is hingedly connected to the lifting rod through a hinge block, and the left and right ends of the hinge block are respectively connected to the balancing rod and the lifting rod;

[0035] One end of the balancing rod away from the hinge block is connected to the first adjusting block via a corresponding connecting rod, and the top of the lifting rod is connected to the second adjusting block via a corresponding connecting rod;

[0036] The locking seat is fastened in the balance support plate, a locking groove is provided on one side of the locking seat, a clamping block is provided on one side of the bottom of the lifting rod, and the clamping block slides toward or away from the locking groove;

[0037] A mounting groove is provided on one side of the bottom of the lifting rod, a spring is horizontally arranged in the mounting groove, one end of the spring is connected to the groove wall of the mounting groove, and the other end of the spring is connected to the clamping block, and the spring is used to push the clamping block into the locking groove;

[0038] A sliding groove is formed on a side of the locking seat away from the locking groove in a vertical direction, and a side of the lifting rod away from the clamping block is slidably installed in the sliding groove.

[0039] By adopting the above technical solution, when the first adjustment block is lowered with the downward pressure of the tooling, the end of the balance bar connected to the first adjustment block is synchronously lowered, and the end of the balance bar close to the hinge block moves upward. At this time, the hinge block and the lifting rod move upward synchronously under the drive of the balance bar, and the second adjustment block is driven upward through the lifting rod.

[0040] When the lifting rod is lifted, it drives the block to lift and slide in the vertical direction until the block is stuck in the lock slot. In this state, the second adjustment block just contacts the tooling. As the block is stuck in the lock slot, the locking seat locks the lifting rod. After the lifting rod is locked, the second adjustment block connected to the top of the lifting rod is also locked, and at the same time, the first adjustment block is also locked.

[0041] When the lifting plate is lifted, the side wall of the locking seat compresses the card block, and the spring is in a compressed state. When the card block moves upward to the lock slot, the spring releases its elastic force to push the card block into the lock slot for locking.

[0042] The slide groove provides good guidance for the lifting rod during the sliding process of the lifting rod, thereby facilitating the improvement of the stability of the lifting rod during the sliding process.

[0043] Preferably, a first auxiliary rod and a second auxiliary rod are provided between the balance rod and the locking seat, one end of the first auxiliary rod is hingedly connected to the side wall of the balance rod, and the other end of the first auxiliary rod is hingedly mounted on the locking seat; one end of the second auxiliary rod is hingedly connected to the end of the balance rod, and the other end of the second auxiliary rod is hingedly mounted on the locking seat, and the first auxiliary rod and the second auxiliary rod are distributed on the left and right sides of the hinge block.

[0044] By adopting the above technical solution, during the rotation of the balancing pole, the first auxiliary pole and the second auxiliary pole can assist the balancing pole in rotating, thereby helping to ensure the stability of the balancing pole during the rotation process.

[0045] In summary, the present application includes at least one of the following beneficial technical effects:

[0046] 1. Specifically, when positioning the tooling, the front end and the middle end of the tooling are first positioned by the first positioning mechanism and the second positioning mechanism, and then the end of the tooling is positioned by the third positioning mechanism and the first and second adjusting blocks on the balance support plate. After the third positioning mechanism and the first and second adjusting blocks clamp the end of the tooling, the abutment degree of the first or second adjusting block with the end of the tooling is adjusted according to the specific position of the tooling positioned by the first and second positioning mechanisms and the positioning effect, so that the positioning clamping force of the third positioning mechanism and the balance support plate on the end of the tooling can be adjusted accordingly.

[0047] For example, according to the positioning of the tooling by the first positioning mechanism and the second positioning mechanism, it is necessary to adjust the clamping force of the third positioning mechanism and the balance support plate on the end of the tooling. In this state, the position of the first adjustment block or the second adjustment block on the balance support plate is movably adjusted, and the clamping force of the balance support plate and the third positioning mechanism on the end of the tooling is adjusted by adjusting the position of the first adjustment block or the second adjustment block on the balance support plate.

[0048] This arrangement, using the first adjustment block and the second adjustment block on the balance support plate, can effectively avoid the phenomenon of over-positioning of the tooling, thereby effectively preventing structural damage to the tooling due to over-positioning, which is conducive to ensuring the molding quality of the tooling;

[0049] 2. In this arrangement, the first adjustment block and the second adjustment block are set to different starting heights by using the positioning step. As the first adjustment block descends, the second adjustment block rises synchronously, and the best positioning state is achieved when the second adjustment block abuts against the tooling.

[0050] When the second adjustment block abuts against the tooling, it transmits a signal that the tooling has reached the optimal positioning state. The staff can judge whether the tooling has reached the optimal state based on this signal, thereby effectively avoiding the problem of excessive positioning of the tooling.

[0051] 3. When the first adjustment block is lowered with the downward pressure of the tooling, the end of the balance bar connected to the first adjustment block is lowered synchronously, and the end of the balance bar close to the hinge block moves upward. At this time, the hinge block and the lifting rod move upward synchronously driven by the balance bar, and drive the second adjustment block upward through the lifting rod.

[0052] When the lifting rod is lifted, it drives the block to lift and slide in the vertical direction until the block is stuck in the lock slot. In this state, the second adjustment block just contacts the tooling. As the block is stuck in the lock slot, the locking seat locks the lifting rod. After the lifting rod is locked, the second adjustment block connected to the top of the lifting rod is also locked, and at the same time, the first adjustment block is also locked.

[0053] When the lifting plate is lifted, the side wall of the locking seat compresses the card block, and the spring is in a compressed state. When the card block moves upward to the lock slot, the spring releases its elastic force to push the card block into the lock slot for locking.

[0054] The slide groove provides good guidance for the lifting rod during the sliding process of the lifting rod, thereby facilitating the improvement of the stability of the lifting rod during the sliding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0056] Figure 2 is a structural schematic diagram showing the position relationship of the movable rod in the embodiment of the present application;

[0057] Figure 3 is a structural schematic diagram of an embodiment of the present application specifically showing the position relationship of the positioning steps;

[0058] Figure 4 It is a structural schematic diagram of the embodiment of the present application specifically showing the positional relationship between the balance rod, the lifting rod, the locking seat, the first auxiliary rod and the second auxiliary rod;

[0059] Figure 5 It is a structural schematic diagram of an embodiment of the present application that specifically shows the positional relationship among a lock slot, a clamping block, an installation slot, a spring, and a slide slot.

[0060] 1. bottom plate; 2. first positioning mechanism; 21. first positioning block; 22. first support plate; 23. first driving cylinder; 3. second positioning mechanism; 31. second positioning block; 32. second support plate; 33. second driving cylinder; 4. third positioning mechanism; 41. third positioning block; 411. connecting plate; 412. pressing plate; 42. third driving cylinder; 5. balancing support plate; 6. first adjusting block; 7. second adjusting block; 8. supporting block; 9. supporting rod; 10. trapezoidal groove; 11. rotating shaft; 12. movable rod; 13. positioning step; 14. self-locking mechanism; 141. balancing rod; 142. lifting rod; 143. locking seat; 15. hinge block; 16. locking groove; 17. block; 18. mounting groove; 19. spring; 20. slide groove; 24. first auxiliary rod; 25. second auxiliary rod. DETAILED DESCRIPTION

[0061] The following is combined with Figure 1 -Attached Figure 5 , further details of this application are given.

[0062] Embodiment 1:

[0063] The present application discloses a positioning device for welding castings, referring to Figure 1 , including a rectangular bottom plate 1, on which a first positioning mechanism 2, a second positioning mechanism 3 and a third positioning mechanism 4 are provided, which are used to position the front end, the middle end and the end of the tooling respectively, and after the first positioning mechanism 2, the second positioning mechanism 3 and the third positioning mechanism 4 position the tooling, the tooling is welded. The first positioning mechanism 2, the second positioning mechanism 3 and the third positioning mechanism 4 are used to effectively ensure the stability of the tooling during the welding process.

[0064] At the same time, refer to Figure 1 The bottom plate 1 is provided with a balance support plate 5 on one side of the third positioning mechanism 4. The balance support plate 5 is in a rectangular shape and is located at the bottom of the tooling end. The balance support plate 5 and the third positioning mechanism 4 clamp and position the end of the tooling. The bottom of the balance support plate 5 is welded to the bottom plate 1. The first adjustment block 6 and the second adjustment block 7 are respectively installed on the left and right sides of the top of the balance support plate 5. The first adjustment block 6 and the second adjustment block 7 are supported at the bottom of the tooling. The first adjustment block 6, the second adjustment block 7 and the third positioning mechanism 4 clamp and position the end of the tooling.

[0065] At the same time, the first adjusting block 6 and the second adjusting block 7 are both movably installed on the top of the balancing support plate 5 .

[0066] Specifically, when positioning the tooling, the front end and the middle end of the tooling are first positioned by the first positioning mechanism 2 and the second positioning mechanism 3, and then the end of the tooling is positioned by the third positioning mechanism 4 and the first adjustment block 6 and the second adjustment block 7 on the balance support plate 5. After the third positioning mechanism 4 and the first adjustment block 6 and the second adjustment block 7 clamp the end of the tooling, according to the specific position of the tooling positioned by the first positioning mechanism 2 and the second positioning mechanism 3 and the positioning effect, the abutment degree of the first adjustment block 6 or the second adjustment block 7 with the end of the tooling is adjusted, so that the positioning clamping force of the third positioning mechanism 4 and the balance support plate 5 on the end of the tooling can be adjusted accordingly.

[0067] For example, according to the positioning of the tooling by the first positioning mechanism 2 and the second positioning mechanism 3, it is necessary to adjust the clamping force of the third positioning mechanism 4 and the balance support plate 5 on the end of the tooling. In this state, the position of the first adjustment block 6 or the second adjustment block 7 on the balance support plate 5 is movably adjusted, and the position of the first adjustment block 6 or the second adjustment block 7 on the balance support plate 5 is adjusted to achieve the adjustment of the clamping force of the balance support plate 5 and the third positioning mechanism 4 on the end of the tooling.

[0068] This arrangement, using the first adjustment block 6 and the second adjustment block 7 on the balance support plate 5, can effectively avoid the phenomenon of over-positioning of the tooling, and can effectively prevent structural damage to the tooling due to over-positioning, which is beneficial to ensuring the molding quality of the tooling.

[0069] Specifically, refer to Figure 1 The first positioning mechanism 2 includes a first positioning block 21, a first support plate 22 and a first driving cylinder 23. The cylinder body of the first driving cylinder 23 is fastened to the bottom plate 1 by fastening bolts in the vertical direction, the piston rod of the first driving cylinder 23 is vertically upward, the first positioning block 21 is connected to the piston rod of the first driving cylinder 23 in the horizontal direction, and the first driving cylinder 23 is used to drive the first positioning block 21 to move up and down in the vertical direction.

[0070] The first support plate 22 is welded on the bottom plate 1 in the vertical direction, and support blocks 8 are integrally formed on both the left and right sides of the top of the first support plate 22. The two support blocks 8 are located below the tooling, and the first driving cylinder 23 drives the first positioning block 21 to press the front end of the tooling onto the two support blocks 8. Then, the first positioning block 21 and the two support blocks 8 are used to clamp and position the front end of the tooling.

[0071] In this embodiment, rubber rings are sleeved on the circumference of the two support blocks 8. The rubber rings are relatively soft and can effectively prevent the support blocks 8 from being directly released from the tooling, thereby providing certain protection for the tooling.

[0072] Specifically, refer to Figure 1 The second positioning mechanism 3 includes a second positioning block 31, a second support plate 32 and a second driving cylinder 33. The cylinder body of the second driving cylinder 33 is fastened to the bottom plate 1 by fastening bolts in the vertical direction, the piston rod of the second driving cylinder 33 is vertically upward, the second positioning block 31 is connected to the piston rod of the second driving cylinder 33 in the horizontal direction, and the second driving cylinder 33 is used to drive the second positioning block 31 to move up and down in the vertical direction.

[0073] Reference Figure 1, the second support plate 32 is welded to the bottom plate 1 in the vertical direction. A support rod 9 is integrally formed at the top of the second support plate 32. The support rod 9 is located below the tooling. The second driving cylinder 33 drives the second positioning block 31 to press the middle end of the tooling against the support rod 9. Thus, the middle end of the tooling is clamped and positioned by the second positioning block 31 and the support rod 9. A rubber ring is also sleeved on the peripheral side of the support rod 9.

[0074] Specifically, referring to Figure 1 , the third positioning mechanism 4 includes a third positioning block 41 and a third driving cylinder 42. The cylinder body of the third driving cylinder 42 is fastened to the bottom plate 1 in the vertical direction through a corresponding mounting bracket. The piston rod of the third driving cylinder 42 is vertically downward. The third positioning block 41 is connected to the piston rod of the third driving cylinder 42 in the horizontal direction. The third driving cylinder 42 is used to drive the third positioning block 41 to move up and down in the vertical direction.

[0075] The end of the tooling is located between the third positioning block 41 and the balance support plate 5. The first adjusting block 6 and the second adjusting block 7 on the third positioning block 41 and the balance support plate 5 clamp and position the end of the tooling.

[0076] Specifically, referring to Figure 1 , the third positioning block 41 includes a connecting plate 411 and two pressing plates 412. The connecting plate 411 is in a cuboid shape. The connecting plate 411 is connected to the piston rod of the third driving cylinder 42. The two pressing plates 412 are respectively welded to the left and right sides of the bottom of the connecting plate 411. The connecting plate 411 and the two pressing plates 412 form a "U" - shaped structure.

[0077] Referring to Figure 1 , a trapezoidal groove 10 is formed at one end of the pressing plate 412 away from the connecting plate 411. Specifically, when pressing the end of the tooling, the part of the tooling connected to the pressing plate 412 will be stuck in the trapezoidal groove 10 of the pressing plate 412. Thus, the trapezoidal groove 10 can effectively ensure the stability during the pressing process of the pressing plate 412 on the tooling.

[0078] Specifically, referring to Figure 1 and Figure 2 , the balance support plate 5 is hollow inside. A rotating shaft 11 is inserted horizontally through the middle of the balance support plate 5. The rotating shaft 11 is driven by a corresponding motor. On both the left and right sides of the rotating shaft 11, a movable rod 12 is integrally formed. One end of the movable rod 12 is connected to the rotating shaft 11, and the other end of the movable rod 12 is connected to the first adjusting block 6 or the second adjusting block 7.

[0079] When it is necessary to adjust the first adjusting block 6 or the second adjusting block 7 movably, turn on the motor. The motor drives the rotating shaft 11 to rotate. During the rotation of the rotating shaft 11, the movable rod 12 is driven to rotate. Thus, the corresponding first adjusting block 6 or the second adjusting block 7 is driven to be adjusted movably through the movable rod 12.

[0080] The motor is a forward and reverse motor, which is convenient for driving the rotating shaft 11 to rotate forward and reverse.

[0081] When the rotating shaft 11 rotates forward, the first adjusting block 6 is driven by the movable rod 12 to move away from the tooling, and the second adjusting block 7 is moved towards the tooling. In this state, the farther the distance between the first adjusting block 6 and the tooling is, the lower the clamping force between the two is, and the closer the distance between the second adjusting block 7 and the tooling is, the higher the clamping force between the two is. The opposite is true when the rotating shaft 11 is reversed.

[0082] Furthermore, the first adjustment block 6 and the second adjustment block 7 can be movably adjusted on the balance support plate 5 through the rotating shaft 11, and the first adjustment block 6 and the second adjustment block 7 can be used to effectively avoid the phenomenon of over-positioning of the tooling, thereby effectively preventing structural damage to the tooling due to over-positioning, which is beneficial to ensuring the molding quality of the tooling.

[0083] The implementation principle of a positioning device for welding castings in the embodiment of the present application is as follows:

[0084] First, the front end and the middle end of the tooling are positioned by the first positioning mechanism 2 and the second positioning mechanism 3, and then the end of the tooling is positioned by the third positioning mechanism 4 and the first adjustment block 6 and the second adjustment block 7 on the balance support plate 5. After the third positioning mechanism 4 and the first adjustment block 6 and the second adjustment block 7 clamp the end of the tooling, according to the specific position of the tooling positioned by the first positioning mechanism 2 and the second positioning mechanism 3 and the positioning effect, the abutment degree of the first adjustment block 6 or the second adjustment block 7 with the end of the tooling is adjusted, so that the positioning clamping force of the third positioning mechanism 4 and the balance support plate 5 on the end of the tooling can be adjusted accordingly.

[0085] For example, according to the positioning of the tooling by the first positioning mechanism 2 and the second positioning mechanism 3, it is necessary to adjust the clamping force of the third positioning mechanism 4 and the balance support plate 5 on the end of the tooling. In this state, the position of the first adjustment block 6 or the second adjustment block 7 on the balance support plate 5 is movably adjusted, and the position of the first adjustment block 6 or the second adjustment block 7 on the balance support plate 5 is adjusted to achieve the adjustment of the clamping force of the balance support plate 5 and the third positioning mechanism 4 on the end of the tooling.

[0086] This arrangement, using the first adjustment block 6 and the second adjustment block 7 on the balance support plate 5, can effectively avoid the phenomenon of over-positioning of the tooling, and can effectively prevent structural damage to the tooling due to over-positioning, which is beneficial to ensuring the molding quality of the tooling.

[0087] Embodiment 2:

[0088] The difference between the embodiment of the present application and embodiment 1 is that:

[0089] Reference Figure 3 A positioning step 13 is provided on the top of the balancing support plate 5, and the first adjusting block 6 and the second adjusting block 7 are respectively located on the left and right sides of the positioning step 13, the first adjusting block 6 is located on the higher side of the balancing support plate 5, and the second adjusting block 7 is located on the lower side of the balancing support plate 5.

[0090] At the same time, the rotation of the rotating shaft 11 does not require a motor to drive. When the third positioning block 41 is pressed against the top of the tooling, since the first adjustment block 6 is installed at a higher position of the balance support plate 5, the tooling will preferentially abut against the first adjustment block 6. As the third positioning block 41 continues to press the tooling down, the tooling presses down the first adjustment block 6 when it is pressed down. As the first adjustment block 6 is pressed down, the corresponding movable rod 12 is driven to rotate, and then the rotating shaft 11 is rotated. The movable rod 12 located on the other side of the rotating shaft 11 and connected to the second adjustment block 7 rotates with the rotation of the rotating shaft 11, and drives the second adjustment block 7 to rise.

[0091] That is, while the first adjusting block 6 is descending, the second adjusting block 7 is ascending.

[0092] When the second adjusting block 7 gradually rises and abuts against the tooling, this state is the best positioning state. When the best state is reached, the third positioning block 41 will no longer continue to press down the tooling, and the positioning of the tooling is completed at this time.

[0093] In this embodiment, the optimal positioning state of the tooling needs to be summarized through multiple tests. The optimal positioning state is summarized based on the welding conditions of the tooling after the specific positioning is completed, and the corresponding steps on the balance support plate 5 are designed based on this optimal positioning state to ensure that the optimal positioning state is achieved when the second adjustment block 7 abuts against the tooling.

[0094] Specifically, after the first positioning mechanism 2 and the second positioning mechanism 3 have completed positioning of the front end and the middle end of the tooling, the third positioning block 41 is pressed down so that the end of the tooling is pressed on the first adjustment block 6. As the tooling is pressed down, the first adjustment block 6 descends and the second adjustment block 7 rises. According to the best positioning state summarized, when the second adjustment block 7 reaches the corresponding height, the downward pressure on the third positioning block 41 is stopped. At this time, the height of the step on the balance support plate 5 is adjusted according to the height of the second adjustment block 7 to ensure that the best positioning state is achieved when the second adjustment block 7 just abuts against the tooling.

[0095] In this arrangement, the first adjusting block 6 and the second adjusting block 7 are set to different starting heights by using the positioning step 13. As the first adjusting block 6 descends, the second adjusting block 7 rises synchronously, and the best positioning state is achieved when the second adjusting block 7 abuts against the tooling.

[0096] When the second adjustment block 7 abuts against the tooling, it transmits a signal that the tooling has reached the optimal positioning state. The staff can judge whether the tooling has reached the optimal state based on this signal, thereby effectively avoiding the problem of excessive positioning of the tooling.

[0097] Embodiment 3:

[0098] The difference between this application and Example 1 and Example 2 is that:

[0099] Reference Figure 3 and Figure 4 A self-locking mechanism 14 is added to the balance support plate 5. When the second adjustment block 7 abuts against the tooling to achieve the best positioning effect, the self-locking mechanism 14 is used to lock the first adjustment block 6 and the second adjustment block 7, thereby effectively ensuring the stability of the tooling in the best positioning state.

[0100] In Example 2 of the present application, the second adjustment block 7 is in the best positioning state when it abuts against the bottom of the tooling. However, when the staff judges whether the second adjustment block 7 just abuts against the tooling or continues to abut against the tooling and then over-contacts the tooling, deviations are likely to occur, which makes it easy for the abutment degree between the second adjustment block 7 and the tooling to be over-contacted, causing the tooling to miss the best positioning state.

[0101] The self-locking mechanism 14 can automatically lock the second adjustment block 7 when the second adjustment block 7 abuts against the tooling, thereby effectively ensuring that the tooling is in the best positioning state, which is beneficial to improving the accuracy of the positioning device for the tooling and ensuring the positioning effect, thereby effectively ensuring the welding effect of the tooling after the positioning is completed and the overall molding quality of the tooling.

[0102] Specifically, refer to Figure 3 and Figure 4 The self-locking mechanism 14 includes a balance rod 141, a lifting rod 142 and a locking seat 143. One end of the balance rod 141 is connected to the first adjustment block 6, and the other end of the balance rod 141 is hingedly connected to the lifting rod 142 through a hinge block 15. The left and right ends of the hinge block 15 are respectively connected to the balance rod 141 and the lifting rod 142.

[0103] One end of the balancing rod 141 away from the hinge block 15 is connected to the first adjusting block 6 via a corresponding connecting rod, and the top of the lifting rod 142 is also connected to the second adjusting block 7 via a corresponding connecting rod.

[0104] Specifically, when the first adjustment block 6 is lowered with the downward pressure of the tooling, the end of the balance bar 141 connected to the first adjustment block 6 is lowered synchronously, and the end of the balance bar 141 close to the hinge block 15 moves upward. At this time, the hinge block 15 and the lifting rod 142 move upward synchronously under the drive of the balance bar 141, and the second adjustment block 7 is driven upward through the lifting rod 142.

[0105] The locking seat 143 is composed of two seat bodies distributed on the left and right, and both seat bodies are fastened in the balance support plate 5 by fastening bolts. A locking groove 16 is opened on one side of the locking seat 143, and a clamping block 17 is added to one side of the bottom of the lifting rod 142. As the lifting rod 142 rises, the clamping block 17 moves toward the locking groove 16 until the clamping block 17 is clamped into the locking groove 16. In this state, the second adjustment block 7 just abuts against the tooling. As the clamping block 17 is clamped into the locking groove 16, the locking seat 143 locks the lifting rod 142. After the lifting rod 142 is locked, the second adjustment block 7 connected to the top of the lifting rod 142 is also locked, and at the same time, the first adjustment block 6 is also in a locked state.

[0106] Specifically, refer to Figure 4 and Figure 5 A mounting groove 18 is provided on one side of the bottom of the lifting rod 142 , and a spring 19 is horizontally arranged in the mounting groove 18 . One end of the spring 19 is connected to the groove wall of the mounting groove 18 , and the other end of the spring 19 is connected to the block 17 .

[0107] During the lifting process of the lifting plate, the side wall of the locking seat 143 compresses the block 17, and the spring 19 is in a compressed state. When the block 17 moves upward to the lock slot 16, the spring 19 releases the elastic force to push the block 17 into the lock slot 16 for locking.

[0108] At the same time, a baffle is integrally formed at the bottom of the block 17. When the block 17 is inserted into the locking slot 16, the baffle at the bottom of the block 17 abuts against the outside of the locking slot 16. The baffle is used to facilitate the block 17 to slide out of the locking slot 16. After the tooling welding is completed, it is convenient to unlock the lifting rod 142 on the locking seat 143 so that it can be used next time.

[0109] At the same time, refer to Figure 4 and Figure 5 A sliding groove 20 is provided on the side of the locking seat 143 away from the locking groove 16 in the vertical direction, and the side of the lifting rod 142 away from the block 17 is slidably installed in the sliding groove 20. The sliding groove 20 provides good guidance for the lifting rod 142 during its sliding process, thereby facilitating the improvement of the stability of the lifting rod 142 during its sliding process.

[0110] Further, refer to Figure 4A first auxiliary rod 24 and a second auxiliary rod 25 are provided between the balancing rod 141 and the locking seat 143. One end of the first auxiliary rod 24 is hingedly connected to the side wall of the balancing rod 141, and the other end of the first auxiliary rod 24 is hingedly mounted on the locking seat 143; one end of the second auxiliary rod 25 is hingedly connected to the end of the balancing rod 141, and the other end of the second auxiliary rod 25 is also hingedly mounted on the locking seat 143. The first auxiliary rod 24 and the second auxiliary rod 25 are distributed on the left and right sides of the hinge block 15.

[0111] During the rotation of the balancing pole 141 , the first auxiliary pole 24 and the second auxiliary pole 25 assist the balancing pole 141 in rotating, thereby helping to ensure the stability of the balancing pole 141 during the rotation.

[0112] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A positioning device for welding castings, characterized in that: The invention comprises a base plate (1), on which a first positioning mechanism (2), a second positioning mechanism (3) and a third positioning mechanism (4) are provided, wherein the first positioning mechanism (2), the second positioning mechanism (3) and the third positioning mechanism (4) are respectively used to position the front end, the middle end and the end of the tooling; a balancing support plate (5) is additionally provided on the base plate (1) at one side of the third positioning mechanism (4), wherein the balancing support plate (5) and the third positioning mechanism (4) clamp and position the end of the tooling, the bottom of the balancing support plate (5) is fixed on the base plate (1), and the left and right sides of the top of the balancing support plate (5) are respectively installed with a first adjusting block (6) and a second adjusting block (7), wherein the first adjusting block (6) and the second adjusting block (7) are supported on the bottom of the tooling, and the first adjusting block (6), the second adjusting block (7) and the third positioning mechanism (4) clamp and position the end of the tooling; The first adjustment block (6) and the second adjustment block (7) are both movably mounted on the top of the balance support plate (5).

2. A positioning device for casting welding according to claim 1, characterized in that: The first positioning mechanism (2) comprises a first positioning block (21), a first supporting plate (22) and a first driving cylinder (23); the first positioning block (21) is connected to a piston rod of the first driving cylinder (23); the first driving cylinder (23) is used to drive the first positioning block (21) to move up and down in a vertical direction; The first support plate (22) is fixed on the base plate (1) in the vertical direction, and support blocks (8) are integrally formed on both left and right sides of the top of the first support plate (22), and the two support blocks (8) are located below the tooling, and the first driving cylinder (23) drives the first positioning block (21) to press the front end of the tooling onto the two support blocks (8).

3. A positioning device for casting welding according to claim 1, characterized in that: The second positioning mechanism (3) comprises a second positioning block (31), a second supporting plate (32) and a second driving cylinder (33); the second positioning block (31) is connected to a piston rod of the second driving cylinder (33); the second driving cylinder (33) is used to drive the second positioning block (31) to move up and down in a vertical direction; The second support plate (32) is fixed on the base plate (1) in a vertical direction, a support rod (9) is integrally formed on the top of the second support plate (32), the support rod (9) is located below the tooling, and the second driving cylinder (33) drives the second positioning block (31) to press the middle end of the tooling onto the support rod (9).

4. A positioning device for casting welding according to claim 1, characterized in that: The third positioning mechanism (4) comprises a third positioning block (41) and a third driving cylinder (42), wherein the third positioning block (41) is connected to a piston rod of the third driving cylinder (42), and the third driving cylinder (42) is used to drive the third positioning block (41) to move up and down in a vertical direction; The end of the tooling is located between the third positioning block (41) and the balance support plate (5), and the first adjusting block (6) and the second adjusting block (7) on the third positioning block (41) and the balance support plate (5) clamp and position the end of the tooling.

5. A positioning device for casting welding according to claim 4, characterized in that: The third positioning block (41) includes a connecting plate (411) and two pressing plates (412). The connecting plate (411) is connected to the piston rod of the third driving cylinder (42). The two pressing plates (412) are respectively fixedly connected to the left and right sides of the bottom of the connecting plate (411). The connecting plate (411) and the two pressing plates (412) form a "U" - shaped structure. A trapezoidal groove (10) is formed at one end of the pressing plate (412) away from the connecting plate (411).

6. A positioning device for casting welding according to claim 5, characterized in that: The balance support plate (5) is hollow inside. A rotating shaft (11) is inserted horizontally through the middle of the balance support plate (5). The rotating shaft (11) is driven by a corresponding motor. On both the left and right sides of the rotating shaft (11), a movable rod (12) is integrally formed. One end of the movable rod (12) is connected to the rotating shaft (11), and the other end of the movable rod (12) is connected to the corresponding first adjusting block (6) or the second adjusting block (7).

7. A positioning device for casting welding according to claim 1, characterized in that: A positioning step (13) is added to the top of the balance support plate (5). The first adjusting block (6) and the second adjusting block (7) are respectively located on the left and right sides of the positioning step (13). The first adjusting block (6) is located on the higher side of the positioning step (13), and the second adjusting block (7) is located on the lower side of the positioning step (13). The third positioning mechanism (4) presses the tooling against the first adjusting block (6) and drives the rotating shaft (11) to rotate.

8. A positioning device for casting welding according to claim 7, characterized in that: A self - locking mechanism (14) is added inside the balance support plate (5).

9. A positioning device for casting welding according to claim 8, characterized in that: The self - locking mechanism (14) includes a balance rod (141), a lifting rod (142), and a locking seat (143). One end of the balance rod (141) is connected to the first adjusting block (6). The other end of the balance rod (141) is hinged to the lifting rod (142) through a hinge block (15). The left and right ends of the hinge block (15) are respectively connected to the balance rod (141) and the lifting rod (142). A corresponding connecting rod is connected between the end of the balance rod (141) away from the hinge block (15) and the first adjusting block (6). A corresponding connecting rod is connected between the top of the lifting rod (142) and the second adjusting block (7). The locking seat (143) is fastened inside the balance support plate (5). A locking groove (16) is formed on one side of the locking seat (143). A clamping block (17) is added to one side of the bottom of the lifting rod (142). The clamping block (17) slides in the direction of approaching or departing from the locking groove (16). A mounting groove (18) is provided on one side of the bottom of the lifting rod (142), a spring (19) is horizontally arranged in the mounting groove (18), one end of the spring (19) is connected to the groove wall of the mounting groove (18), and the other end of the spring (19) is connected to the clamping block (17), and the spring (19) is used to push the clamping block (17) into the locking groove (16); A sliding groove (20) is provided in the vertical direction on a side of the locking seat (143) away from the locking groove (16), and a side of the lifting rod (142) away from the clamping block (17) is slidably installed in the sliding groove (20).

10. A positioning device for casting welding according to claim 9, characterized in that: A first auxiliary rod (24) and a second auxiliary rod (25) are provided between the balancing rod (141) and the locking seat (143); one end of the first auxiliary rod (24) is hingedly connected to the side wall of the balancing rod (141), and the other end of the first auxiliary rod (24) is hingedly mounted on the locking seat (143); one end of the second auxiliary rod (25) is hingedly connected to the end of the balancing rod (141), and the other end of the second auxiliary rod (25) is hingedly mounted on the locking seat (143); the first auxiliary rod (24) and the second auxiliary rod (25) are distributed on the left and right sides of the hinge block (15).

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