Fixture for rough machining of lower cross arm of automobile
By designing a multi-point compression clamp for automobile lower cross arm rough processing, the problem that the clamp for automobile lower cross arm rough processing in the prior art is not convenient for rough processing of all processing surfaces after one clamp, and stable clamping and efficient rough processing of automobile lower cross arm blanks are achieved.
Patent Information
- Application Number
- CN202421570615.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-03
AI Technical Summary
The existing clamps for rough machining of lower cross arm of automobile are not convenient to rough machining all machining surfaces of lower cross arm of automobile after one clamping, resulting in low working efficiency.
A clamp consisting of a base plate and a roughly processed base removably connected to the base plate is designed. The base is equipped with a height pad, a V-shaped block, a head pressing assembly, a side top assembly, a middle pressing assembly and a tail pressing assembly. Through these components, multi-point compression of the lower cross arm blank of the car is ensured that all processing surfaces are exposed to the outside of the clamp.
It realizes stable clamping of the car's lower cross arm blank, which facilitates rough machining of all processing surfaces after clamping once, and improves working efficiency.
Smart Images
Figure CN222768210U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile lower cross arm processing, in particular to a clamp for rough processing of automobile lower cross arms. Background Art
[0002] The blank of the lower cross arm of the automobile is made by casting process, and there will be errors in the external dimensions, so rough machining is required. The rough machining process is mainly to remove the machining allowance, improve production efficiency, and reduce the machining amount for fine machining.
[0003] The existing fixture for rough machining of the lower cross arm of the automobile is not convenient for rough machining of all machining surfaces of the lower cross arm of the automobile after one clamping, and the working efficiency is low, so it is urgently needed to be improved. Utility Model Content
[0004] The purpose of this utility model is to solve the above technical problems, and its technical solution is:
[0005] A fixture for rough machining of a lower cross arm of an automobile, comprising a bottom plate and a rough machining base detachably connected to the bottom plate, wherein the rough machining base is provided with a height pad, a V-shaped block, a head clamping assembly, a side top assembly, a middle clamping assembly and a tail clamping assembly, wherein the height pad and the V-shaped block are respectively arranged at the front and rear ends of the rough machining base, and the height pad is arranged corresponding to the large hole end of the blank of the lower cross arm of the automobile, and the two V-shaped blocks are respectively supported under the two cylindrical parts of the blank of the lower cross arm of the automobile, and the head clamping assembly is arranged at the top of the height pad, and the height A top block is provided on the pad block, and a support bolt is threadedly connected to the top block. The head clamping assembly cooperates with the support bolt to clamp the large hole end of the automobile lower cross arm blank. The side top assembly is arranged on the right side of the rough-machined base, and is used to clamp the transition part on the right side of the automobile lower cross arm blank. The middle clamping assembly is correspondingly arranged on the left and right sides of the middle of the rough-machined base, and is used to clamp the left and right sides of the automobile lower cross arm blank. The tail clamping assembly is correspondingly arranged on the rear side of the two V-blocks, and is used to clamp the two cylindrical parts of the automobile lower cross arm blank.
[0006] Preferably, the head clamping assembly includes a first clamping assembly and a second clamping assembly, the first clamping assembly includes a push rod and a pressure seat, the pressure seat is connected to a pressure block by bolts, and the push rod and the pressure block are used to clamp the support part on the left side of the large hole end of the lower cross arm blank of the automobile, and the second clamping assembly includes a pressure seat and a push rod, the pressure seat is connected to a pressure block by bolts, and the push rod and the pressure block are used to clamp the neck on the right side of the large hole end of the lower cross arm blank of the automobile.
[0007] Preferably, the side top assembly includes a pressure seat three, a U-shaped groove is provided at the top of the pressure seat three, a left top screw is horizontally penetrated through and threadedly connected to the left side wall of the U-shaped groove, a right top screw is horizontally penetrated through and threadedly connected to the right side wall of the U-shaped groove, the transition portion on the right side of the lower cross arm blank of the automobile is supported in the U-shaped groove, and the left top screw and the right top screw are used to tighten the transition portion on the right side of the lower cross arm blank of the automobile.
[0008] Preferably, the middle clamping assembly includes a left clamping member and a right clamping member, the left clamping member includes a left pressure seat, a left push rod and a left pressure block, the left pressure block is connected to the top of the left pressure seat by bolts, the left push rod and the left pressure block cooperate to clamp the left middle part of the lower cross arm blank of the automobile, the right clamping member includes a right pressure seat, a right push rod and a right pressure block, the right pressure block is connected to the top of the right pressure seat by bolts, the right push rod and the right pressure block cooperate to clamp the right middle part of the lower cross arm blank of the automobile.
[0009] Preferably, the tail clamping assembly includes a left-side tail pressure seat and a right-side tail pressure seat, the left-side tail pressure seat is connected to a left-side tail pressure block by bolts, the right-side tail pressure seat is connected to a right-side tail pressure block by bolts, the left-side tail pressure block and the left-side V-block are used to clamp the cylindrical portion on the left side of the automobile lower cross arm blank, and the right-side tail pressure block and the right-side V-block are used to clamp the cylindrical portion on the right side of the automobile lower cross arm blank.
[0010] Preferably, the height pad is provided with a plurality of weight-reducing holes for reducing the weight of the device and facilitating movement.
[0011] It should be noted that each of the push rods in the present application is an adjustable push rod, which can be adjusted up and down by an adjustment knob arranged on its side wall. The specific structure can be referred to the common adjustable push rods commonly used in the art, and will not be repeated here.
[0012] The utility model also includes other components that enable the normal use of a fixture for rough machining of a lower cross arm of an automobile, all of which are conventional means in the field. In addition, devices or components not limited in the utility model, such as a blank of a lower cross arm of an automobile, a V-block, etc., all adopt the existing technology in the field.
[0013] The working principle of the utility model is that the present application performs multi-point clamping on the automobile lower cross arm blank through a head clamping assembly, a side top assembly, a middle clamping assembly and a tail clamping assembly, and makes all the processed surfaces on the automobile lower cross arm blank exposed on the outside of the clamp, so that all its processed surfaces can be roughly processed after the automobile lower cross arm blank is clamped once.
[0014] Compared with the prior art, the utility model has the beneficial effect that the device can realize stable clamping of the automobile lower cross arm blank, and facilitates the rough processing of all the processing surfaces of the automobile lower cross arm blank after one clamping. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model in the embodiment.
[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model in another viewing angle in the embodiment.
[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the automobile lower cross arm blank in the embodiment.
[0018] Figure 4 It is a schematic diagram of the use state of the utility model in the embodiment. DETAILED DESCRIPTION
[0019] The technology of the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0020] Example
[0021] like Figures 1 to 4 As shown, a fixture for rough machining of a lower cross arm of an automobile proposed in this embodiment comprises a base plate 1 and a rough machining base 2 detachably connected to the base plate by bolts, the rough machining base is provided with a height pad 3, a V-shaped block 4, a head clamping assembly, a side top assembly, a middle clamping assembly and a tail clamping assembly, the height pad and the V-shaped block are respectively arranged at the front and rear ends of the rough machining base, and the height pad is arranged corresponding to the large hole end 51 of the lower cross arm blank 5 of the automobile, the two V-shaped blocks are respectively supported under the two cylindrical parts 52 of the lower cross arm blank of the automobile, the head clamping assembly is arranged at the height pad The top of the height pad is provided with a top block 31, and the top block is threadedly connected with a support bolt 32. The head clamping assembly cooperates with the support bolt to clamp the large hole end of the automobile lower cross arm blank. The side top assembly is arranged on the right side of the rough processing base, and is used to clamp the transition part 53 on the right side of the automobile lower cross arm blank. The middle clamping assembly is correspondingly arranged on the left and right sides of the middle of the rough processing base, and is used to clamp the left and right sides of the automobile lower cross arm blank. The tail clamping assembly is correspondingly arranged on the rear side of the two V-shaped blocks, and is used to clamp the two cylindrical parts of the automobile lower cross arm blank. Specifically, the automobile lower cross arm blank is provided with a first processing surface 54, a second processing surface 55, a third processing surface 56, a fourth processing surface 57 and a fifth processing surface 58.
[0022] In this embodiment, the head clamping assembly includes a first clamping assembly and a second clamping assembly, the first clamping assembly includes a push rod 6 and a pressure seat 7, the pressure seat 1 is connected to a pressure block 8 by bolts, the push rod 1 and the pressure block 1 are used to clamp the support part 59 on the left side of the large hole end of the lower cross arm blank of the automobile, the second clamping assembly includes a pressure seat 2 9 and a push rod 2 10, the pressure seat 2 is connected to a pressure block 2 11 by bolts, the push rod 2 and the pressure block 2 are used to clamp the neck 50 on the right side of the large hole end of the lower cross arm blank of the automobile.
[0023] Among them, the side top assembly includes a pressure seat three 12, the top of the pressure seat three is provided with a U-shaped groove 13, a left top screw 14 is horizontally penetrated and threadedly connected on the left side wall of the U-shaped groove, and a right top screw 15 is horizontally penetrated and threadedly connected on the right side wall of the U-shaped groove. The transition part on the right side of the lower cross arm blank of the automobile is supported in the U-shaped groove, and the left top screw and the right top screw are used to tighten the transition part on the right side of the lower cross arm blank of the automobile.
[0024] Specifically, the middle clamping assembly includes a left clamping member and a right clamping member, the left clamping member includes a left pressure seat 16, a left push rod 17 and a left pressure block 18, the left pressure block is connected to the top of the left pressure seat by bolts, and the left push rod cooperates with the left pressure block to clamp the left middle part of the lower cross arm blank of the automobile, and the right clamping member includes a right pressure seat 19, a right push rod 20 and a right pressure block 21, the right pressure block is connected to the top of the right pressure seat by bolts, and the right push rod cooperates with the right pressure block to clamp the right middle part of the lower cross arm blank of the automobile.
[0025] More specifically, the tail clamping assembly includes a left-side tail pressure seat 22 and a right-side tail pressure seat 23, the left-side tail pressure seat is connected to a left-side tail pressure block 24 by bolts, the right-side tail pressure seat is connected to a right-side tail pressure block 25 by bolts, the left-side tail pressure block and the left-side V-block are used to clamp the cylindrical portion on the left side of the automobile lower cross arm blank, and the right-side tail pressure block and the right-side V-block are used to clamp the cylindrical portion on the right side of the automobile lower cross arm blank.
[0026] In addition, a plurality of weight-reducing holes 33 are provided on the height pad to reduce the weight of the device and facilitate movement.
[0027] The working principle of the utility model is that the present application performs multi-point clamping on the automobile lower cross arm blank through the head clamping assembly, the side top assembly, the middle clamping assembly and the tail clamping assembly, and makes each processing surface on the automobile lower cross arm blank exposed on the outside of the clamp, so that after the automobile lower cross arm blank is clamped once, all its five processing surfaces can be roughly processed.
[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A fixture for rough machining of a lower cross arm of an automobile, comprising a base plate and a rough machining base detachably connected to the base plate, characterized in that: The rough machining base is provided with a height pad, a V-block, a head clamping assembly, a side top assembly, a middle clamping assembly and a tail clamping assembly, the height pad and the V-block are respectively arranged at the front and rear ends of the rough machining base, and the height pad is arranged corresponding to the large hole end of the automobile lower cross arm blank, and the two V-blocks are respectively supported under the two cylindrical parts of the automobile lower cross arm blank, the head clamping assembly is arranged at the top of the height pad, and the height pad is provided with a top block, and the top block is threadedly connected with a supporting bolt, the head clamping assembly cooperates with the supporting bolt to clamp the large hole end of the automobile lower cross arm blank, the side top assembly is arranged on the right side of the rough machining base, for clamping the transition part on the right side of the automobile lower cross arm blank, the middle clamping assembly is correspondingly arranged on the left and right sides of the middle part of the rough machining base, for clamping the left and right sides of the automobile lower cross arm blank, and the tail clamping assembly is correspondingly arranged on the rear side of the two V-blocks, for clamping the two cylindrical parts of the automobile lower cross arm blank.
2. The fixture for rough machining of a lower cross arm of an automobile according to claim 1, characterized in that: The head clamping assembly includes a first clamping assembly and a second clamping assembly, the first clamping assembly includes a push rod and a pressure seat, the pressure seat is connected to a pressure block by bolts, the push rod and the pressure block are used to clamp the support part on the left side of the large hole end of the lower cross arm blank of the automobile, the second clamping assembly includes a pressure seat and a push rod, the pressure seat is connected to a pressure block by bolts, the push rod and the pressure block are used to clamp the neck on the right side of the large hole end of the lower cross arm blank of the automobile.
3. The fixture for rough machining of a lower cross arm of an automobile according to claim 1, characterized in that: The side top assembly includes a pressure seat three, a U-shaped groove is provided at the top of the pressure seat three, a left top screw is horizontally penetrated and threadedly connected to the left side wall of the U-shaped groove, and a right top screw is horizontally penetrated and threadedly connected to the right side wall of the U-shaped groove. The transition part on the right side of the lower cross arm blank of the automobile is supported in the U-shaped groove, and the left top screw and the right top screw are used to tighten the transition part on the right side of the lower cross arm blank of the automobile.
4. The fixture for rough machining of a lower cross arm of an automobile according to claim 1, characterized in that: The middle clamping assembly includes a left clamping member and a right clamping member, the left clamping member includes a left pressure seat, a left push rod and a left pressure block, the left pressure block is connected to the top of the left pressure seat by bolts, the left push rod and the left pressure block cooperate to clamp the left middle part of the lower cross arm blank of the automobile, the right clamping member includes a right pressure seat, a right push rod and a right pressure block, the right pressure block is connected to the top of the right pressure seat by bolts, the right push rod and the right pressure block cooperate to clamp the right middle part of the lower cross arm blank of the automobile.
5. The fixture for rough machining of a lower cross arm of an automobile according to claim 1, characterized in that: The tail pressing assembly includes a left-side tail pressing seat and a right-side tail pressing seat, the left-side tail pressing seat is connected to a left-side tail pressing block by bolts, the right-side tail pressing seat is connected to a right-side tail pressing block by bolts, the left-side tail pressing block and the left-side V-block are used to press the cylindrical part on the left side of the automobile lower cross arm blank, and the right-side tail pressing block and the right-side V-block are used to press the cylindrical part on the right side of the automobile lower cross arm blank.
6. The fixture for rough machining of a lower cross arm of an automobile according to claim 1, characterized in that: The height cushion block is provided with a plurality of weight-reducing holes.